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
(175 Reviews)
Rating breakdown 175 reviews
5 Stars
146
4 Stars
21
3 Stars
5
2 Stars
2
1 Star
1
99%of customers recommend this product.
(
116 out of
117)
Customer Reviews for Samsung - microSDXC T9 512GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH512T/WW)
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
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
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
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
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
Solid memory card for multiple formats
on June 3, 2026
Posted by: Caoimhinx
from Camp Hill
[This review was collected as part of a promotion.] I own lots of storage from multiple vendors. I have relied on Samsung memory cards for many years. They tend to be fast and reliable. The T9 microSDXC 128GB is no exception. I tried the card in several devices. Compared to other cards, the T9 was fast and consistent. In both my laptop and in a cheap tablet the performance difference was noticeable. This is a solid choice for storage in cameras, portable devices, and even in a handheld radio scanner. I may level up to a larger size for the tablet to enhance the device. I recommend this card.
I would recommend this to a friend!
Written by a customer while visiting The Insiders
Customer Rating
5
Great speed and size
on June 2, 2026
Posted by: BlueDahlia
from Rome
[This review was collected as part of a promotion.] I'm pretty happy with the performance of this Samsung T9 microSDXC 128GB card so far. We've been using it for about a month now and it's been working great. I'd just purchased some security cameras and needed a card to store the footage because the subscription for the cameras is per camera. This is saving us some money in the long run! It's performing as expected - no issues. It's also been able to withstand the outside weather from heavy rain showers, high heat temps and wind and keeps our camera running. I'll be looking to pick up more of these for our handhelds and backing up more data. I'd recommend for anyone looking for a reliable card that holds up in the outdoors for security cams and great for consoles.
I would recommend this to a friend!
Written by a customer while visiting The Insiders
Customer Rating
5
Fast and Reliable Storage for Action Cameras
on June 2, 2026
Posted by: Darkz90
from San Bernardino
[This review was collected as part of a promotion.] I’ve always had good experiences with Samsung storage products, and this microSDXC card has been working great so far. My version is the Samsung T9 microSDXC 128GB model and I use it mainly in an action camera for recording videos and saving photos. The speeds feel fast and consistent, especially when recording high-resolution video, and I haven’t had any issues with corrupted files or random disconnects. It’s also nice having something compact but durable enough to handle daily use and travel. Definitely a solid choice if you need reliable microSDXC storage for cameras or other devices.
I would recommend this to a friend!
Written by a customer while visiting The Insiders