Turn 1 USB C port on your computer into 2xHDMI 4K@30Hz, 1xVGA 2K@60Hz, 2xUSB 3.0, 2xUSB 2.0, 1xGigabit Ethernet, 1xSD/TF Card Reader, 1xUSB C for PD 60W charging. 2xHDMI ports support resolution up to 4K - 3840X2160P@30Hz (DP1.4 required to host computer), backward compatible with 1080p, /23.98/24/50/59.94/60Hz,1080i/50/59.94 /60Hz,720p/50/59.94/60Hz. 1xVGA supports 1920X1080P@60Hz resolution. HDMI+HDMI+VGA triple display is supported for Windows in mirror & extend mode (the main computer will be closed); When triple display on Mac OS, the 3 external monitors can only display the same content with the main computer open. 1xUSB C for upstream 60W charging only, no data transfer supported. 1xSD/TF (Micro SD) Card Reader enriches your digital life, camera-users friendly. 2xUSB 3.0 ports up to 5Gbps, 2xUSB 2.0 ports, 1xGigabit Ethernet port provides efficient wired networking anyhow anywhere you need, backward to 10/100Mbps. 1x3.5mm Audio out/Mic in, adding more flexibility.