Features: brand new and high quality 4Port USB Switch is an excellent choice to share 4 USB devices between two Comptuers; USB 3.0 Switch supports ultra-fast USB 3.0 data transfer rates of up to 5Gb/s (10 times faster than USB 2.0) It's for ideal for sharing a printer or scanner in a small office environment; for Windows 10/8/8.1/7 / Vista / XP and MacOS Linux and Chrome OS; No driver installation required for compatible systems; Specifications: Model: Vs021b Item: Usb 2 In 4 Out Switch Function: 2 Computers Share 4 Usb Devices Standard: Usb3.0 2.0 Switching Method: Button Accessories: Only One Charging Cable, excluding USB A-A Cable Power Supply: Micro Usb 5v Size: approx 105x53x16mm/4.13x2.08x0.63in Color: Black Material: Plastic Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 PC x KVM Switch