KC-KM434B USB3.0 4 Port USB Shared Device 4 Port Printer Sharing Device Keyboard Mouse Switch 1. Allows switching between 4 computers using a push-button switch or wired remote control to share 4 USB peripherals without having to constantly pull cables or set up complicated network sharing software 2. Allows sharing of multiple devices such as mice, keyboards, printers, scanners, USB flash drives and other USB devices between 4 computers 3. Note: When connecting high power USB devices such as hard disk drives, digital video cameras, etc., you need to plug in a 5V power supply (power adapter not included) 4. Support up to 5Gbs USB 3.0 data transfer rate, mouse and keyboard switches backward compatible with USB 2.0 and USB 1.1 peripherals 5. Supports wireless keyboard and mouse, can easily switch between 4 computers by pressing a button or pressing the wired remote control, green LED indicates which computer is in use 6. Comes with a wired remote control (1.5 meters), say goodbye to messy cables on your desktop 7. With a separate micro-USB port power supply, driver-free, plug and play 8. Compatible with Windows 1088.17VistaXP, Mac OS, Linux, Chrome OS 9. Interface: USB 3.0 10. Size: about 10.5 x 6.54 x 2cm Packing list: - Switcher x 1 - USB 3.0 cable (0.8m) x 4 - Wired remote control (1.5m) x 1 - Power cord x 1 - Instruction manual x 1