How fast is SD card reader? Noriko July 11, 2018 09:18 Updated Follow A. The SD card reader has speeds up to 104 Mb/s. Related articles Can the USB-C pass through port be used for anything other than charging the Macbook? Does the SD card readers support UHS-2? What are the dimensions of the item? Can I use this with Apple SuperDrive? Can I charge an iPhone X, Google Pixel 2, Kindle Fire, iPad and a Samsung Galaxy S9? Comments 0 comments Please sign in to leave a comment.