1. 2 computers share a printer, no need to plug and unplug cables for office printing 2. Mouse switching: Right-click on the mouse to select the icon, and select Switch to switch 3. Shortcut key switch: switch by keyboard hot key, convenient and fast 4. Button switching: through the body buttons, one-button switching 5. Applicable to many USB devices, compatible with various systems 6. With indicator light, know the working status in real time 7. No power supply required, plug and play 8. Interface: 1 x USB A female interface 2 x square port USB 9. Applicable: ScannerU DiskCard ReaderPrinterCopy 10. Switching method: panel key switchingkeyboard hotkey switchingcomputer software switching 11. Dimensions: 65x40x17mm Print icon color description: 1. Green: indicates that the printer is connected to the machine and can be printed 2. Yellow: indicates that the printer is connected to other computers; it needs to be switched before it can be connected to the machine for printing 3. Red: Indicates that the printer is transmitting, or the computer software conflicts, you need to click YES after clicking the switch Use suggestions: 1. Try to use a good quality USB cable 2. Try to connect the printer and the sharer with a short cable, and the total length of the cable should not exceed 5 meters (for Pratt & Whitney printers, it is recommended that the standard wire within 3 meters is recommended)