B07L15X458 SanDisk 256GB Micro SDXC Extreme Pro Memory Card Works with Samsung Galaxy S9, S9+, S8, S8 Plus, S7, S7 Edge UHS-1 U3 A2 Bundle with (1) Everything But Stromboli 3.0 Micro/SD Card Reader

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Compatible with S9, S9+, S8, S8 Plus, S7, S7 Edge, and other compatible Samsung Phones!
This new, faster version of the 256GB has Read speeds up to 170mb/s and up to 90mb/s Write speed!
UHS Speed Class Video 30 (V30) 2 means that your card is ready for forays into virtual reality and 360 ?? video record. In addition, it provides UHS Speed Class 3 (U3) to receive Full HD and 4K UHD videos
A2 for extremely fast app performance and Speed Class 10 for Full HD video recording and playback.