Customer reviews from Samsung US
Samsung - P9 Express 512GB microSDXC Memory Card
Average customer rating
4.8
(132 Reviews)
Rating breakdown 132 reviews
5 Stars
111
4 Stars
15
3 Stars
5
2 Stars
0
1 Star
1
100%of customers recommend this product.
(
86 out of
86)
Customer Reviews for Samsung - P9 Express 512GB microSDXC Memory Card
Customer Rating
5
Amazing product
on September 14, 2026
Posted by: Malkey
from Bridgeville, Delaware
[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 would recommend this to a friend!
Features
5
Performance
5
Design
5
Value
5
Written by a customer while visiting Samsung US
Customer Rating
4
My money
on September 14, 2026
Posted by: Dbopruitt128
from ADDYSTON
[This review was collected as part of a promotion.] much capability how much memory Destin to the point.\nAnd remembers every thing put in...I love the long lasting memories it has,I love how fast it loads and I've dropped it washed it and it still works like brand new. I can always count on it it's the most long lasting tool...
I would recommend this to a friend!
Features
4
Performance
4
Design
4
Value
4
Written by a customer while visiting Samsung US
Customer Rating
5
Samsung 512GB MicroSD Express Card P9 Express
on September 13, 2026
Posted by: Unforgettable Rose
[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.
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
* 🎥 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
Written by a customer while visiting Samsung US
Customer Rating
3
Great features and reliable memory\nIs to use?\nS
on September 12, 2026
Posted by: Bakerdog
from Utah heber city
Expertise:Beginner
[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 would recommend this to a friend!
Features
3
Performance
4
Design
3
Value
4
Response from Samsung USBy Samsung Pro, September 14, 2026
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
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
Written by a customer while visiting Samsung US
Customer Rating
5
Best memory card
on September 11, 2026
Posted by: AmirV
from Mission Viejo
Expertise:Intermediate
[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 would recommend this to a friend!
Features
5
Performance
5
Design
5
Value
5
Written by a customer while visiting Samsung US
Customer Rating
5
Great Micro SD Card
on September 11, 2026
Posted by: Qaqsu
from Utqiagvik
Expertise:Expert
[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 would recommend this to a friend!
Features
5
Performance
5
Design
5
Value
5
Written by a customer while visiting Samsung US
Customer Rating
5
Samsung products are the Best in the market today
on September 10, 2026
Posted by: Only man standing
[This review was collected as part of a promotion.] Durability, Speed, reliability, capacity and it is compatible to any other electronic devices. Definitely i will be Recommending Samsung products to my family and friends. The only
Written by a customer while visiting Samsung US
Customer Rating
5
Fast moving
on September 10, 2026
Posted by: Whitegirl
from Pennsylvania
Expertise:Beginner
[This review was collected as part of a promotion.] Definitely worth the money runs super fast no long waits and has a good amount of memory! Id Definitely buy more if I needed more totally recommend buy buy buy it!
I would recommend this to a friend!
Features
5
Performance
5
Design
5
Value
5
Written by a customer while visiting Samsung US