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
(117 Reviews)
Rating breakdown 117 reviews
5 Stars
103
4 Stars
7
3 Stars
5
2 Stars
2
1 Star
0
100%of customers recommend this product.
(
80 out of
80)
Customer Reviews for Samsung - microSDXC T9 512GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH512T/WW)
Customer Rating
5
Samsung T9 microSDXC UHS-I Card
on June 5, 2026
Posted by: Nikki5012
from Clayville
[This review was collected as part of a promotion.] I bought the Samsung T9 microSDXC 128GB - MB-MH128T/AM card to use in an exterior security camera on my house for local backup video storage. I chose Samsung because of the reputation of the brand. I chose the T9 card because it is rated for extreme temperatures and is water resistant.
It specifies the card can withstand operating temps from -13 degrees F to 185 degrees F so I feel confident it will be ok in my camera while sitting in the sun in the summer and in our cold upstate NY winters. It being water resistant is an added benefit just in case moisture gets into the the camera.
So far it has met my expectations and given Samsung's reputation and reliability in data storage products I feel this SD card will last years.
It specifies the card can withstand operating temps from -13 degrees F to 185 degrees F so I feel confident it will be ok in my camera while sitting in the sun in the summer and in our cold upstate NY winters. It being water resistant is an added benefit just in case moisture gets into the the camera.
So far it has met my expectations and given Samsung's reputation and reliability in data storage products I feel this SD card will last years.
I would recommend this to a friend!
Written by a customer while visiting The Insiders
Customer Rating
5
This is fast!
on June 5, 2026
Posted by: RhaewynsMom
from Gardner
[This review was collected as part of a promotion.] I first got this I tried it in my older digital camera (14mpx). I was actually quite surprised at how efficient it was with my older camera! No jolts or issues with video recordings. It also held so many photos too! Next up, I reformatted it and placed it into a fire tablet. I use to have to wait for the old one to load apps and even show it as available storage. Now it’s pretty much instant the moment it starts up. No error loading anything either. It’s just really quite fast. So naturally, I reformatted it again and put it in an older fire tablet. While that tablet is slower to load overall, it still provides decent speed to access the expanded storage—again without issues or having trouble getting it to show up and load. Overall, I’m quite pleased with this and will continue to use it going forward. Sometimes as I upgrade these things, I like to swap the old ones from other devices and I’ve often had trouble with formatting. This doesn’t seem to have that same problem at all. If I had more time, I would try this in a cell phone as well for expanded storage, and I probably will do that as well just to see because I plan to invest in another one. These are really great!
I would recommend this to a friend!
Written by a customer while visiting The Insiders
Customer Rating
5
Great product
on June 7, 2026
Posted by: Cbvv
from Princeton nc
[This review was collected as part of a promotion.] Works great would recommend higher gb but worked great for size.
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
Great value
on June 8, 2026
Posted by: Polypocket
[This review was collected as part of a promotion.] Its a decent micro sd for the nintendo switch, i think is better than nintendo own cards
Written by a customer while visiting Samsung US
Customer Rating
5
Extra Storage Galore!!!!!!
on June 9, 2026
Posted by: Jobird81
[This review was collected as part of a promotion.] Good too have with alot of extra storage couldn't ask for anything better
Written by a customer while visiting Samsung US
Customer Rating
5
Great product
on June 10, 2026
Posted by: Lilsteph07
Expertise:Beginner
[This review was collected as part of a promotion.] ⭐⭐⭐⭐⭐
I bought the T9 microSDXC 128GB card to add more storage, and so far it's been working great. It was easy to install, was recognized right away, and has plenty of space for my photos, videos, and apps. Transfer speeds seem fast, and I haven't had any issues with files disappearing or the card lagging.
For the price, I think it's a solid value. If you're looking for extra storage without spending a fortune, this card gets the job done. I would definitely buy another one.
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
Best so far
on June 10, 2026
Posted by: Shadybby76
from Tucumcari New Mexico
Expertise:Intermediate
[This review was collected as part of a promotion.] It holds all my files with room to spare and it is fast and reliable. It is compatible with my laptop and it is strong.
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
Would buy again
on June 10, 2026
Posted by: Armey2023
from Evansville indiana
Expertise:Intermediate
[This review was collected as part of a promotion.] Great product. Sleek. Works perfectly. Looks good.
I would recommend this to a friend!
Features
5
Performance
5
Design
5
Value
5
Written by a customer while visiting Samsung US