Customer reviews from Samsung US
Samsung - microSDXC T9 512GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH512T/WW)
Average customer rating
4.8 out of 5
4.8
(229 Reviews)
Open Ratings Snapshot
Rating breakdown 229 reviews
5 Stars
192
4 Stars
28
3 Stars
6
2 Stars
2
1 Star
1
99%of customers recommend this product. 
(
142 out of 143
)
Best Buy Privacy Policy
Customer Reviews for Samsung - microSDXC T9 512GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH512T/WW)
Customer Rating
5 out of 5
5
My Samsung Micro SD Card Review
on June 27, 2026
Posted by: JustBern64
from Dallas, TX
Expertise:Intermediate
[This review was collected as part of a promotion.] My new Samsung Micro SD card ROCKS! It holds more storage for my games, it loads faster, durable, very reliable & the compatibility; Don't get me started. Best thing I've ever gotten when it comes to gaming!
I would recommend this to a friend!
Features
5 out of 5
5
Performance
5 out of 5
5
Design
5 out of 5
5
Value
5 out of 5
5
Written by a customer while visiting Samsung US
Customer Rating
5 out of 5
5
Powerful Memory Card
on June 27, 2026
Posted by: Jlm80
from Nokesville
[This review was collected as part of a promotion.] I love this 128GB T9 microSDXC Card. It is little but strong. The128GB gives me all the space I need. I use it for gaming, streaming shows, managing my music library, and working on documents. The 200 MB/S for reading and 130 MB/s for writing works great and keeps up with everything I do very easily. Compatibility has been spot on, especially with my phone and gaming console. I am also on the go a lot and this card can everything - water, high temperatures, and daily wear and tear with ease.
I would recommend this to a friend!
Written by a customer while visiting The Insiders
Customer Rating
3 out of 5
3
Great features!
on June 26, 2026
Posted by: Luv2shop
from Boston, ma
Expertise:Intermediate
[This review was collected as part of a promotion.] Seems like a great ffit!...great compatibility! Glad we took the time time for the right product!
I would recommend this to a friend!
Features
4 out of 5
4
Performance
4 out of 5
4
Value
4 out of 5
4
Response from Samsung USBy Samsung Brand Ambassador, June 26, 2026
Luv2shop,

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
Written by a customer while visiting Samsung US
Customer Rating
4 out of 5
4
Memory storage cards
on June 26, 2026
Posted by: Ginger
[This review was collected as part of a promotion.] Great to hold extra items and pictures. Also it has no compatibility issues
Written by a customer while visiting Samsung US
Customer Rating
5 out of 5
5
Happy
on June 25, 2026
Posted by: Tipster89
from Midlothian texas
Expertise:Intermediate
[This review was collected as part of a promotion.] the capacity is amazing it's always been reliable very happy
I would recommend this to a friend!
Features
3 out of 5
3
Performance
5 out of 5
5
Design
3 out of 5
3
Value
5 out of 5
5
Written by a customer while visiting Samsung US
Customer Rating
5 out of 5
5
Perfect for switch 2
on June 25, 2026
Posted by: Fk992
from Kansas city
Expertise:Expert
[This review was collected as part of a promotion.] Very fast. Comes in premium packing. Works brilliantly with my switch 2.
I would recommend this to a friend!
Features
5 out of 5
5
Performance
5 out of 5
5
Design
5 out of 5
5
Value
5 out of 5
5
Written by a customer while visiting Samsung US
Customer Rating
5 out of 5
5
Great features
on June 24, 2026
Posted by: Napster8979
[This review was collected as part of a promotion.] Speed, Reliability and durability compatibilit97679
I would recommend this to a friend!
Features
5 out of 5
5
Performance
5 out of 5
5
Design
5 out of 5
5
Value
5 out of 5
5
Written by a customer while visiting Samsung US
Customer Rating
5 out of 5
5
the best impression and the best option
on June 24, 2026
Posted by: AngelithoO666
from Phoenix,AZ
Expertise:Beginner
[This review was collected as part of a promotion.] when i buy it my firt impresion was its going to slow my laptop but nop my card was a good think and the emplyos helps me alot but now i very happy
Features
4 out of 5
4
Performance
4 out of 5
4
Design
3 out of 5
3
Value
3 out of 5
3
Written by a customer while visiting Samsung US
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