Review on SanDisk 128GB Extreme PRO SDXC UHS-I Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXY-128G-GN4IN | High Capacity, Ultra-Fast, V30 Rated SDXC Card by Dave Butler

I have decided to upgrade my DSLR's SD memory card to an SD memory card with faster read/write speeds. I used a Samsung 64Gb EVO which I paid $9.99 for. Using the SpeedOut software (on my Windows 10 PC with an integrated SD card reader) I achieved read speeds of up to 82 MB/s. Last week I decided to pay double ($19.99) for twice the speed (170MB/s). Just received a SanDisk Extreme Pro 64Gb/170MB/s from Revain. Before installing it in my camera, I decided to test it with the same SpeedOut software. After several tests I only got 83 MB/s! Is this a fake SanDisk Extreme Pro 170MB/s SD card? I think so. Return to Revain for a full refund ($21.84). As stated in my headline. "Beware the buyer".