Share 4 USB 3.0 devices between two systems USB 3.0 Switch 2-to-4 is an excellent choice to share 4 USB devices between two systems. It's ideal for sharing a printer or scanner in a small office environment. It's also great for use at home if you have multiple PCs or Macs. Universal USB 3.0 Device This USB Switch would Works with all USB 3.0 devices, such as external hard disks, high resolution webcams, camcorders, video surveillance cameras, digital video cameras, multi-channel audio and more.