ONE-SECOND SWITCH: The USB switcher allows two computers or mac to share same peripheral usb devices with 4 USB 3.0 ports. Without the hasslement of plugging and unplugging cables, one key press to switch within one second! | FASTER USB 3.0: 4 USB 3.0 ports make the date transfering rate up to 5Gb/s (10 times faster than USB 2.0). With two 1.5m USB 3.0 cables packaged in, the SOHO KVM SWITCH can work well with high-bandwidth USB 3.0 peripheral devices such as external hard disks , HD webcams and digital cameras. It is backward compatible with USB 2.0 and USB 1.1 devices. | MORE CONVENIENCE: In office, the PC selector box allows two computers to share same printer and scanner, which could reduce the cost. At home, you could use same keyboard and mouse to control two pcs with one-key switch. | STABLE CONNECTION: Built-in Micro USB port for power supply if needed. When you need to connect more devices of high power comsuption such as HDD, Printer and Scanner, you should power it through the port via power adapter. It will ensure more stable connection | PLUG AND PLAY: Easy to install. No extra drivers or softwares required. We provide 1-year warranty and 24-hour email responding! Note: Mechanical Keyboards may make it buzzing.