1. Control two computers with one set of keyboard/mouse. Both computers can share electronic devices like printers, keyboards, mice, and USB drives without repeated plugging/unplugging. Seamless switching boosts productivity. 2. Share one printer between two computers without disconnecting cables. Enables dual-computer printer sharing to reduce office costs. 3. Streamline file transfers with hot-swappable support for effortless device switching. 4. Backup computer port with auxiliary USB power output supports external hard drive power supply and device charging (e.g., smartphones). 5. Plug-and-play operation requires no drivers or installation for effortless efficiency. Name:USB 4-Port Splitter Purpose:Typically enables one printer to be shared between two computers, allowing four USB devices to be shared between two computers, saving time in daily office work. Supports sharing of 4 types of USB devices including keyboard/mouse/printer Compatible Operating Systems: Pure hardware design requires no driver installation. Plug-and-play compatible with for Win7/8/10/Vista/Linux systems, supports for and other operating systems. Color:Black Material:plastic Package Contents: 1 * USB 4-port splitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.