MicroSD Express Card P9 Express

White 512 GB
MB-MK512T/AM

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MicroSD Express Card P9 Express
White 512 GB

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Features

Next-gen ready. Power up your gaming.

MicroSD Express Card P9 Express

Enjoy smooth gaming with P9 Express, which works with gaming consoles. Featuring PCIe® technology for high-speed performance and Dynamic Thermal Guard (DTG) to maintain optimal temperatures, the card is designed to provide immersive gameplay for both casual and high demand gamers.

Save every moment of play

Dive into endless solo adventures or gather for unforgettable family game nights. Your gaming universe comes alive on one powerful card, crafted to fill every adventure with joy and wonder.

Speed that sparks your world

Get into your game in a flash. Featuring sequential read speeds of up to 800 MB/s—up to 4x faster than our UHS-I microSD cards*. This card may help minimize installation, update, and load times. Your DLCs and adventures are always closer to your gameplay.1

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Stay cool. Play non-stop

 Enjoy incredible gaming, even when the action heats up. Dynamic Thermal Guard (DTG) helps maintain steady performance during high-demand games. Enjoy extended sessions with minimal interruptions and fully immersive gameplay.

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All your games in one tiny card

Store all your favourites, save your replays, and download new titles or DLCs with up to 512GB of reliable storage. Your game library is always ready for your next adventure, wherever you go.2

Protect your progress

For marathon gaming sessions, the P9 Express is built to survive whatever life throws at you. With water¹, temperature², X-ray³, magnet⁴, and drop-resistant⁵, your combo-chains and once-in-a-lifetime wins are always safe.3

Backwards Compatibility

P9 Express is compatible with gaming consoles, while providing backward compatibility for creative devices with UHS-I slots*. Effortlessly capture and transfer your photos and 4K videos to your workstation and laptop seamlessly, and at your speed.4

Samsung Magician software

Unlock the full power of microSD Express with Samsung Magician software - a user-friendly suite of management tools that facilitates optimal Memory card performance. Verify product authenticity, monitor drive health, and benchmark performance.5

Choose the right option for you.

We call them files and folders. But really, they’re the pieces of your life — the photos, the voicenotes, the videos, the precious moments. Whatever it is. If it matters to you, it matters.

Next-gen ready. Power up your gaming.

Specifications

  • Interface

    PCIe Gen3.0x1, NVMe 1.3, SD 7.1, UHS-I

  • Speed Class

    U3, V30, A1

  • Warranty

    Limited 3-year warranty. * Warranty does not extend to dashcam, CCTV, surveillance camera and other write-intensive uses.

  • Product Type

    microSDXC Memory Card

  • Product Name

    P9 Express

  • Application

    Compatible with devices that include a microSDXC™ slot, including Mobile phone, Tablet, Action Camera, Drone, Laptop, Gaming console, etc.

  • Capacity

    512GB (1GB=1Billion byte)* Actual storage capacity may be lower than the labeled capacity. Part of the storage may be used for system files and other storage control purposes.

  • NAND Type

    Samsung V-NAND TLC

  • Controller

    SM2708

  • Interface

    PCIe Gen3.0x1, NVMe 1.3, SD 7.1, UHS-I

  • Dimension (WxHxD)

    15x11x1 mm
    0.59 × 0.43 × 0.04 inches

  • Weight

    Approx. 0.25g

  • Sequential Read

    SD Express 800 MB/s, UHS-I 90 MB/s

  • Speed Class

    U3, V30, A1

  • Random Read (4KB, QD32)

    SD Express 65K IOPS, UHS-I 2K IOPS

  • Random Write (4KB, QD32)

    SD Express 52K IOPS, UHS-I 2K IOPS

  • Random Read (4KB, QD1)

    SD Express 9K IOPS, UHS-I 2K IOPS

  • Random Write (4KB, QD1)

    SD Express 30K IOPS, UHS-I 2K IOPS

  • HMB (Host Memory Buffer)

    Support

  • Non-Operating Temperature

    -40~85℃

  • Operating Temperature

    0~45℃

  • Magnetic

    15,000 Gauss, 30 secs

  • X-ray

    100 mGy

  • Water

    1M depth, 3% NaCl, 25℃

  • Humidity

    40℃/93%, 85℃/85%

  • Durability

    10,000 mating cycles

  • EMC

    CE(UKCA)/FCC/VCCI/RCM

  • Limited 3-year warranty. * Warranty does not extend to dashcam, CCTV, surveillance camera and other write-intensive uses.

Reviews

MicroSD Express Card P9 Express

4.5

Recommended by 96% of customers.

Write a review
5.0 71%
4.0 21%
3.0 4%
2.0 0%
1.0 4%
Features 4.4
Performance 4.8
Design 4.6
Value 4.7
AI Functionality 4.5
AI review summary
  • Customers praise blistering speeds up to 800MB/s with 60,000+ IOPS, dramatically cutting game load times
  • Reviewers consistently report zero errors, lag, or corrupted files even during heavy 4K video use
  • Most appreciate 256GB and 512GB capacity options providing ample space for games, photos, and videos
  • Customers report seamless compatibility across Nintendo Switch 2, cameras, tablets, drones, and older devices
  • A few note the premium price, though most deem the performance gains worth the investment
AI-generated from customer ratings & reviews, and may include incentivized reviews.

Filters

Relevancy sort puts the best reviews at the top. We look at things like helpfulness votes, latest review, pictures and other traits that readers look for in their reviews.

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47 Reviews

Kangaroo kelly
4 (9,999)

2026-09-22

4 (9,999)
[This review was collected as part of a promotion.] I have always been the type person who cant work or or fix phones and computers. Iv always been the person never to remember things until I need them and can't find it. So I really like the SDxc cards now iv got the camera w me always and it also backs up other. Important files I'll. Need. The gbs these have save up room on my phone so no more storage emails and texts saying they're deleting my accounts while it saves space. On my phone it allows my phone to run faster and clean to run. Also it can be used on a computer as well so u don't have to buy more than 1
Originally posted on Samsung US
Memory
5 (9,999)

2026-09-28

5 (9,999)
[This review was collected as part of a promotion.] This memory device is outstanding it holds everything and it is compatible with all of my devices including the ones at my office
Originally posted on Samsung US
Darrin
4 (9,999)

2026-06-21

Charlotte, NC

4 (9,999)
[This review was collected as part of a promotion.] This is, by far, the best and most reliable micro SD I have ever used. Reliable doesn't even come close! I cannot get into too many details but I can say that any other card would have failed 10 times over but this one stood up to the perils and pulled thru without so much as a lost byte. From the looks of the card, it was toast, all info lost, but once I cleaned it up and plugged it in, boom... Nothing lost, nothing compromised. So I bought 3 more. Thank you a ton!
Originally posted on Samsung US

Features

3 (9,999)

Performance

5 (9,999)

Design

4 (9,999)

Value

4 (9,999)

AI Functionality

3 (9,999)
TheOnes_ToWatch
5 (9,999)

2026-07-28

SAN PEDRO, CA

5 (9,999)
[This review was collected as part of a promotion.] Start with down side. The warranty life for a premium card like this isn't what Id hope for. 3yrs compared to 10yrs like the other plus pro cards. Outside of that its hitting on every level. Its a strong reliable build, exceptional heat resistance. Its demanding and will last any power rig its compatible with. It boasts a leader amongst the rest and overall its a big contender. Id recommend it. Power Gaming Rigs
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Luv2shop
4 (9,999)

2026-08-27

4 (9,999)
[This review was collected as part of a promotion.] I’m really happy with this 512GB microSD card. The large capacity gives me plenty of space for my files, photos, and videos, and it has been easy to use. The card feels well made and reliable, and the speed has been good for transferring and accessing my files. I also like that it is compact and easy to carry around. Overall, it’s a good microSD card and I would recommend it to anyone looking for extra storage.
Originally posted on Samsung US
AsianDevilDog
5 (9,999)

2026-07-21

5 (9,999)
[This review was collected as part of a promotion.] Amazingly fast, works well in my switch 2. Purchased 2 before the AI made the price increase and couldn't be happier. Functions properly 100% of the time unlike off brand cards that sometimes won't read the first time inserted. Only had them a few months so I can't attest to their durability but they seem quality made, and I've never had issues with samsung products.
I recommended this product.
Originally posted on Samsung US

Features

4 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

3 (9,999)
SKirkland
5 (9,999)

2026-04-18

5 (9,999)
[This review was collected as part of a promotion.] Its incredibly reliable, never have any issues. The speed is crazy fast, light turn a light switch when pulling up my memory card. An its capacity space is unreal and its compatible with any Samsung product. If you own anything Samsung, you know they are the most reliable, durable, and dependable brand.
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
MINDREADER
5 (9,999)

2026-06-07

Shreveport La

5 (9,999)
[This review was collected as part of a promotion.] the speed of the 512 of the 512 GB Microsoft of the 512gb Microsoft is excellent speed unimaginable what I thought it would be great product from the Samsung Foundation the capacity I'm defined 12 GB Microsoft SD device is way bigger than what I thought the capacity I love it if you looking for a good device like this a Micro SD 12 is the best one reliability of this new Revolution at 12 GB micro SD is very reliable have very reliability been having mine now a few years good shape working it's very reliable before a reliable SD microchip 512 GB get it and you will see for yourself great selection trying to say capability I'll capability that's included with the device that's why at 12 GB Michael SD called it's the call is the best product long lasting very capability much capability pro compatibility I haven't had anything that is capable more than this 512 Microsoft SD I just haven't ran across that has more capability 512 GB Microsoft SD reliable safety does get hot drop proof the of the design it lasts as much longer
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Taittito
5 (9,999)

2026-09-17

Point Pleasant west Virginia

5 (9,999)
[This review was collected as part of a promotion.] the product was very nice an abundant amount of space reliable durable well worth the purchase if I was able to purchase another one I would do the same referring this product to friends the family it's really compatible with all my accessories super fast speed
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Wallie
5 (9,999)

2026-09-16

5 (9,999)
[This review was collected as part of a promotion.] I have a samsung galaxy s24 ultra and thats all. I absolutely love it 😀 so far the capacity is unlimited and its very compatible with my day to day activities so far. Very durable, been dropped countless times and its still very fast and reliable.
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
MinhyunX
5 (9,999)

2026-09-23

Pacifica

5 (9,999)
[This review was collected as part of a promotion.] No issues with loading, perfect for my Switch 2. Very quick write speeds. Staying reliable so far with a workable storage size. I would have gotten a bigger size but the deal was too good to pass up. Hasnt let me down so far
I recommended this product.
Originally posted on Samsung US
Ghost
3 (9,999)

2026-08-28

3 (9,999)
[This review was collected as part of a promotion.] Never again always something that makes my life some crapt. Card is to small to handle what I put towards it. Definitely not compatible or durable. It isn't fast either and doesnt hold anything. And you cant rely on it for for time
Originally posted on Samsung US
Response from Samsung:
2026-08-28

Samsung Pro

Ghost, Thank you for sharing your review of Samsung’s P9 Express card. We’re sorry your experience didn’t match your expectations. Your feedback is very important to us as we continuously strive for best-in-class product and service. Please feel free to reach out to Samsung Customer Support with any further comments, concerns, or suggestions you wish to share. If given the chance, we would love to make things right. You can reach us at: 1) Call: 1-800-SAMSUNG (ask for Storage Devices). Available 9AM - 12AM EST (Mon-Fri) 2) Email: samsungmemorysupport@sea.samsung.com 3) LiveChat 9AM-9PM EST (Mon-Fri) -- https://www.livehelpnow.net/lhn/lcv.aspx?d=34834&ms=&zzwindow=0&lhnid=29783 ~Samsung Pro

Lil Dev
5 (9,999)

2026-09-23

5 (9,999)
[This review was collected as part of a promotion.] Super fast microSD card! Love it! You should get one! Super reliable, the durability is unmatched, compatible with a almost ever laptop/phone with a SD slot, capacity 100%
Originally posted on Samsung US
MRMURO
5 (9,999)

2026-09-22

Fresno,Ca

5 (9,999)
[This review was collected as part of a promotion.] THE CAPACITY OF THIS MEMORY CARD IS EXCELENT.I WOULDN'T ABOUT BUYING ANYTHING BUT METRO-TMOBILE PRODUCTS.IT HOLDS ENOGH FOR TO SAVE ALL MY MUSIC AND INFO THAT I NEED TO SAVE .
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
itsserenity
5 (9,999)

2026-09-23

5 (9,999)
[This review was collected as part of a promotion.] It has a great amount of storage, it very very durable, I would most definitely say that it is reliable, it has very good speed also, it's very compatible.
Originally posted on Samsung US
MikeEy
5 (9,999)

2025-12-28

Chicago, IL

5 (9,999)
[This review was collected as part of a promotion.] This super fast sd card cuts your load times by so much it's ridiculous. What's a giant card if you have to wait forever to play? No brainer for me! Highly recommend.
I recommended this product.
Originally posted on Samsung US

Features

4 (9,999)

Performance

5 (9,999)

Design

3 (9,999)

Value

5 (9,999)
Nessie
5 (9,999)

2026-06-24

Columbus,Georgia

5 (9,999)
[This review was collected as part of a promotion.] The reliability of this product is outstanding!! It's fast and stable for important information. The compatibility of the products makes whole process supper easy.l
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)

AI Functionality

5 (9,999)
Solo the don
5 (9,999)

2026-07-12

5 (9,999)
[This review was collected as part of a promotion.] hopefully I like this product and hopefully that you enjoy it soon this here is the memory SMD card comes the plenty of space compatible with most devices never never mind and I have a version it looks great and also handles like I said give me a bad room with my own devices that I came across and that's me to your computer with ease according to the memory slot according to the memory slot we got some tea car goes and it will format itself you're almost many almost immediately all you have to do injected into your memory slot of your computer or phone four men upload itself all you have to do is Select how much. I hope.\n You have enjoyed this product as much as I have also make sure to leave a great review for this product of many more Samsung's electronics and hopefully you enjoy Samsung's products and brand as much as I do, reliable strong and last longing almost too long and always up-to-date and always compatible with most electronics that you use in your household and some commercial Check out the \nComing up soon. And I will be there to test it out to let you know how great it works for you your home and family.
Originally posted on Samsung US
Malkey
5 (9,999)

2026-09-15

Bridgeville, Delaware

5 (9,999)
[This review was collected as part of a promotion.] The product is reliable had plenty of memory for games fast downloading and it's very durable last long and and it's compatible with everything that I use it for
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Qaqsu
5 (9,999)

2026-09-11

Utqiagvik

5 (9,999)
[This review was collected as part of a promotion.] Glad I found this Micros SD card. It's compact, fast and reliable. The 512gb allows me to transfer all the documents and photos to all compatible devices.
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Gamerboy29
5 (9,999)

2026-06-30

Converse,TX

5 (9,999)
[This review was collected as part of a promotion.] It's nice. Doesn't overheat, never fails to load, download speeds are amazing, and I like that it works on a switch 2. 10/10 would recommend.
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Kiloj1
4 (9,999)

2026-09-15

Jacksonville, florida

4 (9,999)
[This review was collected as part of a promotion.] All in all pretty straight forward. It does what it's intended to do. I store the thousands of pictures and backing up data from my phone.
I recommended this product.
Originally posted on Samsung US

Features

4 (9,999)

Performance

4 (9,999)

Design

4 (9,999)

Value

4 (9,999)
Bakerdog
3 (9,999)

2026-09-12

Utah heber city

3 (9,999)
[This review was collected as part of a promotion.] easily setting up fast and reliable great memory installation is easy took a while to figure out how to get it to run properly it worked
I recommended this product.
Originally posted on Samsung US

Features

3 (9,999)

Performance

4 (9,999)

Design

3 (9,999)

Value

4 (9,999)
Response from Samsung:
2026-09-14

Samsung Pro

Bakerdog, Thanks for sharing your thoughts. If there's anything we can do to improve your experience with the P9 Express microSD card, please reach Samsung Support at: 1) Call: 1-800-SAMSUNG (ask for Storage Devices) Available 9AM – 12AM EST (Mon-Fri) 2) Email: samsungmemorysupport@sea.samsung.com 3) LiveChat 9AM-9PM EST (Mon-Fri) -- https://www.livehelpnow.net/lhn/lcv.aspx?d=34834&ms=&zzwindow=0&lhnid=29783 ~Samsung Pro

JohnJohn1
1 (9,999)

2025-12-24

1 (9,999)
This card should be minimum A2 speed and NOT A1 which is a slower speed and it should really be a V60 at the minimum for this price.
Helpful?

Features

2 (9,999)

Performance

2 (9,999)

Design

4 (9,999)

Value

2 (9,999)
Response from Samsung:
2026-03-25

SECA CS

Hello JohnJohn1, Thank you for taking time out of your day to providing us product feedback. We will pass this to our relevant teams. For additional product feature feedback or troubleshooting support, please connect with our experts via Live Chat at www.samsung.com/ca/support/live-chat-support Thank you, Samsung Customer Care.

Baroosh
5 (9,999)

2025-11-14

Suffern, NY

5 (9,999)
[This review was collected as part of a promotion.] Had other companies before, since I use Samsung I gained a few minutes in my day, lol. Meaning the speed is incredible. Amazing
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Awesome product
5 (9,999)

2026-05-05

5 (9,999)
[This review was collected as part of a promotion.] micro SD Dora micro SD Express card can I express i don't have to worry about having to delete none of my videos or pictures
Originally posted on Samsung US
AmirV
5 (9,999)

2026-09-11

Mission Viejo

5 (9,999)
[This review was collected as part of a promotion.] Great memory card and very fast. I definitely recommend. I have this memory for the past 2 years and am very happy with it.
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Samsung win
5 (9,999)

2026-08-12

Everton, MO.

5 (9,999)
[This review was collected as part of a promotion.] Great storage space and it is very quick when it's loading. I use it on almost all my products and it is very durable.
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Evie
4 (9,999)

2026-05-22

Atlanta Ga

4 (9,999)
[This review was collected as part of a promotion.] Affordable easy to use. Stores quickly each and every time. Last for years. Works with my computers and other devices
I recommended this product.
Originally posted on Samsung US

Features

3 (9,999)

Performance

5 (9,999)

Design

4 (9,999)

Value

5 (9,999)
Jordy
5 (9,999)

2026-08-23

Las Vegas, Nevada

5 (9,999)
[This review was collected as part of a promotion.] The product is a must in my eyes. Without your going have problems with your device. Running slow etc.
Originally posted on Samsung US
Lily
5 (9,999)

2026-08-26

New York

5 (9,999)
[This review was collected as part of a promotion.] Memory card works as expected. Writes fairly fast and offers a good amount of storage. No complaints.
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

4 (9,999)

Value

5 (9,999)
Aj0327
5 (9,999)

2026-09-10

5 (9,999)
[This review was collected as part of a promotion.] It is very good for the device it has fabulous speed i can rely on it and it's capabilities are good
Originally posted on Samsung US
Queen leo
4 (9,999)

2026-06-24

Hammond la 70403

4 (9,999)
[This review was collected as part of a promotion.] It's a great memory card holds so much and I love it does everything and more thanks Samsung
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)

AI Functionality

5 (9,999)
Whitemac
5 (9,999)

2026-05-09

5 (9,999)
[This review was collected as part of a promotion.] the one with the best ever I loved it all of it Samsung loved it I love it Samsung loved it
Originally posted on Samsung US
Me2no
5 (9,999)

2026-06-29

5 (9,999)
[This review was collected as part of a promotion.] Very excesable and easy to activate the steps I need to initiate to service my device.
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)

AI Functionality

5 (9,999)
Bubbles
5 (9,999)

2025-11-24

5 (9,999)
[This review was collected as part of a promotion.] I picked it because I'm in need of more storage. And it can be very useful to me
Originally posted on Samsung US
clclark285
4 (9,999)

2026-07-25

Pe

4 (9,999)
[This review was collected as part of a promotion.] Does what it supposed to lol I like it keeps stuff stored build quality is good
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Saimon
5 (9,999)

2026-08-05

5 (9,999)
[This review was collected as part of a promotion.] Samsung great futures I love Samsung I used 3 years but always good service
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Memory Card
1 (9,999)

2026-07-30

Rock Island, IL

1 (9,999)
[This review was collected as part of a promotion.] This memory card is very reliable. I have had no issues with it at all.
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Response from Samsung:
2026-07-30

Samsung Brand Ambassador

Memory Card, Thanks for sharing your thoughts. If there's anything we can do to improve your experience, please reach Samsung Support at: 1) Call: 1-800-SAMSUNG (ask for Storage Devices) Available 9AM – 12AM EST (Mon-Fri) 2) Email: samsungmemorysupport@sea.samsung.com 3) LiveChat 9AM-9PM EST (Mon-Fri) -- https://www.livehelpnow.net/lhn/lcv.aspx?d=34834&ms=&zzwindow=0&lhnid=29783 ~Samsung Pro

Antoneio
4 (9,999)

2026-04-08

4 (9,999)
[This review was collected as part of a promotion.] I recommend you trying it. For faster downloads snapshots for pictures.
Originally posted on Samsung US
Likelydate
5 (9,999)

2026-05-29

Ohio

5 (9,999)
[This review was collected as part of a promotion.] So As I Said I've Never Had A Better MicroSD Cards It Works Really Well
Originally posted on Samsung US

Features

1 (9,999)

Performance

5 (9,999)

Design

3 (9,999)

Value

5 (9,999)
Casteleiro
4 (9,999)

2026-06-26

4 (9,999)
[This review was collected as part of a promotion.] So far so good. No problems whatsoever, seems to be reliable.
Originally posted on Samsung US
Tisa
5 (9,999)

2026-04-04

5 (9,999)
[This review was collected as part of a promotion.] The speed and capacity and very durable and I love it alot.
I recommended this product.
Originally posted on Samsung US

Features

5 (9,999)

Performance

5 (9,999)

Design

5 (9,999)

Value

5 (9,999)
Robz4less
5 (9,999)

2026-05-30

5 (9,999)
[This review was collected as part of a promotion.] Very good games for the samsung I will have to grfhh
Originally posted on Samsung US
RaeRae
4 (9,999)

2026-08-16

4 (9,999)
[This review was collected as part of a promotion.] It should hold a lot of storage and very compatible
Originally posted on Samsung US
Unforgettable Rose
5 (9,999)

2026-09-13

5 (9,999)
[This review was collected as part of a promotion.] Express Card P9 512GB: Up to roughly 512 billion bytes of storage (the usable capacity will be somewhat lower after formatting). * microSD Express: Designed for much higher transfer speeds than ordinary UHS-I microSD cards. * P9 Express: Samsung’s product/model designation for this newer Express card family. * Removable: You can move it between compatible devices. * Nonvolatile: Your photos, videos, documents, etc. remain on it when the device is turned off. * Not RAM: Despite being called a “memory card,” it does not function as your phone/computer’s working RAM. ⚠️ The biggest thing to know Your device has to support microSD Express to get the Express performance. If you put it into a device that only supports ordinary microSD/UHS-I, it may still work as a storage card, but you won’t get the full Express speeds. Also, don’t assume that every device with a microSD slot supports microSD Express. The slot and device controller have to support it. What 512GB can hold Very roughly, depending on file sizes: * 📸 100,000+ smartphone photos if they’re around 5 MB each * 🎥 Several dozen hours of 4K video, depending heavily on bitrate * 🎵 Tens of thousands of songs * 📄 Hundreds of thousands of documents * 🎮 A substantial game library on a compatible gaming device
Originally posted on Samsung US
Rayray
5 (9,999)

2025-11-26

5 (9,999)
[This review was collected as part of a promotion.] The P9 Express 512GB microSD Express Card is an easy five-star product, delivering massive storage, rock-solid reliability, and truly next-gen speed that noticeably improves everyday use. Compatibility is excellent, working smoothly with modern handhelds, cameras, tablets, and any microSD Express–ready device. It also runs perfectly in standard microSD slots thanks to backward compatibility, so you don’t need new hardware to enjoy the upgrade. And on devices that fully support microSD Express, the card unlocks its maximum speed potential, offering a performance jump you can feel immediately. Storage: 512GB is more than enough for a large game library, 4K/8K videos, and huge photo collections without constantly managing or deleting files. On storage-heavy devices—especially handheld consoles—it feels completely “set it and forget it.” Reliability: Stability is one of its biggest strengths. Long transfers stay smooth, extended gaming sessions never hiccup, and its durability features (temperature, water, X-ray, and drop protection) give you peace of mind in any environment. Performance: This is where the P9 Express truly shines. Load times, installs, and large file transfers are dramatically faster than older UHS-I cards. On compatible hardware, games and apps feel closer to running from internal SSD storage. With sequential read speeds reaching around 800 MB/s, performance is simply top tier. Compatibility is excellent, working smoothly with a wide range of modern handhelds, cameras, tablets, and microSD Express–ready devices. It also runs perfectly in standard microSD slots thanks to backward compatibility, so you don’t need new hardware to benefit from the upgrade. On devices that fully support microSD Express, the card unlocks its maximum speed potential, delivering a huge jump in performance right out of the box. Final Verdict: Whether you’re upgrading a Switch-style handheld, drone, camera, or tablet, this card delivers a day-one improvement you can instantly feel. The P9 Express 512GB microSD Express Card absolutely earns its 5 stars.
Originally posted on Samsung US
  • 1. * Based on internal testing with the P9 Express microSD card 512GB measured using a PCIe test board, compared to UHS-I microSD cards tested with PRO Ultimate microSD card 512GB and Samsung readers. Actual performance may vary depending on the host device, interface, usage conditions, and other factors. Go to feature
  • 2. * All products shown are provided for illustrative purposes only.* 1GB = 1,000,000,000 bytes.Actual storage capacity may be lower than the labeled capacity. Part of the storage may be used for system files and other storage control purposes.* Availability may vary depending on market and timing. Go to feature
  • 3. ¹Water resistant: up to 1 meters depth, 3% NaCl salt water, 25℃, 72hrs²Temperature resistant: operating temperatures of 0℃ to 45 ℃; non-operating temperatures of -40℃ to 85℃³X-Ray resistant: up to 100mGy, equal to airport X-ray machines.⁴Magnet resistant: up to 15,000 gauss (magnetic field equivalent of a high-field MRI), 30 secs.⁵Drop resistant: withstand drops up to 1 meters (appx. 3.3 feet), 10 cycles. The multi-resistant testing results reported herein were obtained under strictly controlled lab environment, as more fully described in the respective footnote for each test. The test results referenced above are for informational purposes only and provided “as is" without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose. Any attempt to replicate such results are not covered under Samsung’s warranty program and Samsung disclaims any and all liability with respect to damages resulting from such attempts, including without limitation, damage to product, loss of property, or loss of data. For more information on Samsung’s warranty policy, please visit: www.samsung.com/support. Go to feature
  • 4. * Compatible with devices with a microSDXC™ card slot & microSD™ Express host devices. Transfer speeds may be limited to UHS-I speeds depending on the host device’s compatibility. Go to feature
  • 5. * All products shown are provided for illustrative purposes only.* Samsung Magician software is available on Windows® and macOS®. It requires Windows® 10 and higher, or macOS® High Sierra (10.13) and higher. Older versions of the Windows®, and macOS® operating systems may not be supported. Go to feature

All specifications and descriptions provided herein may be different from the actual specifications and descriptions for the product. Samsung reserves the right to make changes to this document and the product described herein, at anytime, without obligation on Samsung to provide notification of such change.