Features: 100% brand new and high quality USB 2.0 sharing Switch is a great solution for sharing USB devices like USB printer, scanner, external drive, or other USB devicewith four computers(four computers share one set of keyboard and mouse), and you could freely switch between these fourcomputers when connection to a USB device by a single push button. Suitable for offices, computer rooms, monitoring hosts, etc.,and you can switch freely through the button. Support speed up to 480Mbps; backward compatible with USB 2.0/1.1 devices; Support Windows XP/7/8/10/Vista, Android-, OS 8.6 and above; Applicate for computers, smart TVs, Android- phones, DVR, etc Package Includes: 1 x VGA KVM Switch 4 x USB Cable 1 x Manual Specifications: Item:KVM Switch Box UP Input : USB2.0 x 4 ports Down Input: USBx 4 Material:Metal Support 1920x1080p Resolution Size:Approx 10x7x2cm/3.93x2.75x0.79in note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 1-5mm error due to the manual measurment.