1 port USB C 5V power supply interface for power supply for the switch 2 port USB input connect 2 computer or laptop by 2pcs USB3.0 A to A cable 3 USB A Output connect 1pc keyboard and 1pc mouse , and 1pc other USB disk , or 1pc printer / scanner/Webcamera or other USB device 4.Switch button for switch between 2 computer , for example, button, switch to first computer , and use keyboard and mouse control the first computer, button again, switch to second computer, and use keyboard and mouse control the second computer 5.USB C output connect other USB C device by 1pc USB2.0 USB-C cable Colour:Black Material:ABS Package Contents: 1x switch 2x 1.5m 3.0 data cables 1x 1.5m power cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.