Features: 1. Allows You To Connect And Share 4 External Usb Devices At Ease No More Plugging And Unplugging Sufferings 2. Universal Compatibility, Support for Windows, Mac, Vista, , Linux Etc. 3. Two Computers Share One Usb Device, Plug And Play, Easy And Fast To Use. 4. Copy And Print Without Plugging Or Unplugging To Extend The Service Life Of The Device. 5. Compatibility: Usb Devices Such As Printers, U Disks, Hard Disks, Mice, Etc., Compatible With Multiple Systems, for Windows XP Win7 Win8 Win8.1 Win10 LINUX MAC Description: External Interface: USB3.0 Transmission Speed: 5Gbps Indicator Light: Blue Switching Method: Press Key Product Name: USB 3.0 Switch Function: 2 Computers Share 4 USB Devices At The Same Time Power Supply: Micro-Usb 5V Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Material: ABS colour: Black Package Contents: 1 x Adapter 2 x USB3.0 Data Cable 1 x Mini Power Supply Cable 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.