Compatible with Apple MacBook Pro and MacBook Air models featuring a USB-C port (sold separately) Two USB 3.0 Type-A ports allow for plugging in flash drives, secondary storage devices, smartphones, and more (each sold separately) Card reader with two slots accommodates SD and microSD cards (sold separately) for quick file transfers USB-C port with power delivery provides up to 87W of output and data transfer speeds of up to 40Gb/s Second USB-C port enables data transfers at a rate of up to 5Gb/s Supports 5K video output to a single monitor or 4K output to 2 monitors at the same time (monitors sold separately)