12-In-1 DOCK: Transforms a single USB-C port of your computer (DP Alt mode and Thunderbolt 3 compatible) to connect multiple devices including two or three simultaneous external monitors, various additional devices and the Internet. Features one USB-C port (PD Power), two USB 3.0 (with BC 1.2 charging) and one USB 2.0 ports, one HDMI, one DisplayPort, one VGA port, one Gigabit Ethernet port, one headphone audio jack, SD/TF (Micro SD) Reader and one USB-C PD 3.0 port MULTI STREAM TRANSPORT TECHNOLOGY - Supports one Ultra HD 4K display or two Full HD 1080p displays (HDMI/DP, DP/VGA, HDMI/VGA) or three 720p video output by MST technology. Note: Video Wall mode requires either an AMD Eyefinity, Intel , or NVIDIA Surround technology graphics adapter. Requires GPU / graphics card to support at least 3 external displays to use all 3 video ports at the same time with extended mode.