Customer reviews from Samsung US
Samsung - P9 Express 512GB microSDXC Memory Card
Average customer rating
4.8
(158 Reviews)
Rating breakdown 158 reviews
5 Stars
135
4 Stars
16
3 Stars
6
2 Stars
0
1 Star
1
100%of customers recommend this product.
(
104 out of
104)
Customer Reviews for Samsung - P9 Express 512GB microSDXC Memory Card
Customer Rating
5
Super great product
on September 17, 2026
Posted by: Taittito
from Point Pleasant west Virginia
Expertise:Expert
[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 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 galaxy 24 ultra
on September 16, 2026
Posted by: Wallie
Expertise:Intermediate
[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 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 features
on September 15, 2026
Posted by: Ressa69
from Gulfport, Mississippi
Expertise:Intermediate
[This review was collected as part of a promotion.] Very great product and it is worth it. very good product.Durability,Reliability,the speed is Great Compatibility
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
Good product. Great for any storage/backup needs
on September 15, 2026
Posted by: Kiloj1
from Jacksonville, florida
[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 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
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
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