The Monoprice 8-in-1 Dual 4K HDMI Display Dock packs massive expandability in a compact, slim, lightweight design. Turn your laptop into a powerful workstation with extra HDMI ports, USB-A, USB-C, Gigabit Ethernet, and SD / microSD card readers with just one USB-C port. Multiply your visibility and productivity with up to two more 4K HDMI monitors instead of squeezing everything into your laptop screen. With 10 Gbps USB-A ports, it transfers data twice as fast as competitor products. The USB-C port takes up to 100W passthrough charging power for the host laptop. Plug-and-play with no driver or extra setup needed. Compatible with Windows and MacOS systems*. *For the MacOS system, only supports SST or Mirror Mode (external monitors will show the same image as the host laptop).