About this item ? [USB 3.0 switch for 4 PCs] USB3.0 switch has 4 inputs and 4 outputs, and is a USB switch that can be shared by 4 PCs without replacing USB devices such as printers, keyboards, external hard disks, and USB hubs.It can be used on both desktop and laptop computers and can be easily switched with the touch of a button. (Note: When connecting a high power USB device such as an external hard disk, you need to connect a 5V/2A power adapter to power the device. Our package includes a power adapter.) ? [High-speed processing and wide range of compatibility] USB 3.0 switcher A new chip capable of high-speed processing improves stability and processing speed by 50% compared to conventional products, and keyboards, mice, external hard disks, printers, etc. are quickly recognized and operated. To do. Supported OS: Supports driver-free, plug-and-play for Windows 10/8 / 8.1 / 7 / Vista / XP and Mac OS X, Linux, Chrome OS. It's perfect for the office!(Power adapter not included) ? [USB 3.0 5Gbps Data High Speed ​​Transfer] The USB 3.0 switch selector supports ultra high speed USB 3.0 data transfer speeds up to 5Gb / s (10 times faster than USB 2.0). It is also backward compatible with USB 2.0 and USB 1.1 devices. Save time and improve efficiency. (Note 2: Please use the USB 3.0 cable provided by us so as not to affect the function of this product. This product does not support the USB 2.0 cable) ? [Excellent stability & compatibility] The USB switch selector supports the plug and play function, so there is no need to install a driver. Equipped with an LED lamp that clearly shows which PC it is connected to, swapping one button between four computers without constantly changing cables or setting up complex network sharing software And share 4 USB 3.0 devices. You only need one mouse and keyboard, so you can effectively use the space on your desk. ? [Quality Assurance] Our USB switch supports 30 days free replacement or refund, 1 year quality guarantee service, 7 days / 24 hours customer service. If you have any questions, please contact us.