[Amazon] Lexar 633x 128Gb SD Card (More Sizes) $13.99 By admin | July 16, 2019 3:50 pm EST 0 Comment Amazon has various sizes of Lexar 633x SD cards on sale. 32Gb $4.19 64Gb $6.99 128Gb $13.99 These cards use the traditional UHS-I interface and are plenty fast for 4k video.