How fast is SD card reader? Noriko May 15, 2019 03:22 Updated Follow A. The SD card reader has speeds up to 104 Mb/s. Related articles Does the SD card readers support UHS-2? Is this product only limited to 64gb SDXC cards? What about USB sticks of 128gb+ size? HHD and SSD? What are the absolute limits? Can I charge an iPhone X, Google Pixel 2, Kindle Fire, iPad and a Samsung Galaxy S9? Can the USB-C pass through port be used for anything other than charging the Macbook? Is it compatible with Windows 10? Comments 0 comments Please sign in to leave a comment.