It is displayed at 90MB / s in performance and I capped at 17MB / s write and 19MB / s read! Tested on 2 pc with 2 different card readers and soft with 2 different bench but limited by the USB2! No need to buy broadband cards if your device does not use the full speed. Most cameras do not exploit. On a PC, it is imperative a USB3 card reader! This should be reported.