
Samsung MB-MD512S 512 GB MicroSDXC UHS-I Classe 10
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Compared across 5 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.
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The Samsung PRO Plus 512GB is a UHS-I microSDXC card built for gaming handhelds, action cameras and drones. It stands out with sequential reads up to 180 MB/s and writes up to 130 MB/s, plus the A2 app performance rating for faster app and game loading. It carries six-way protection (water, temperature, X-ray, magnetic, drop, wear) and a 10-year limited warranty. Compared with UHS-II cards it is slower on paper, but it costs less and works in devices that don't support UHS-II.
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Lowest price we've seen: $109.85 on Nov 11 at oempcworld.com. Tracked across 5 stores since Nov 11.
Owners rate the PRO Plus highly for real-world speed in the Switch, Steam Deck and action cameras. Reviewers confirm the advertised read and write figures in card readers and note stable performance. A few mention slower sustained writes on huge transfers and the lack of an adapter in some packs.
The Samsung PRO Plus is a 512 GB microSDXC memory card (UHS-I, Class 10) built on Samsung NAND flash. It has sequential read speeds of up to 180 MB/s and write speeds of up to 130 MB/s. A2 app performance helps games load quickly and lets you switch between them fast.
The card is rated for six types of protection: water, extreme temperatures, X-rays, magnetic fields, drops and wear. It can store games, high-resolution photos and 4K video. It works with game consoles, action cams and drones.
Samsung Magician software is available for the card. It can verify product authenticity, monitor the condition of the drive and compare performance. The card comes with a 10-year limited warranty.






