Plugable USB 2.0 Switch for One-Button USB Device Port Sharing Between Two Computers (A/B Switch) Compact design provides easy one-touch switching of a USB device or hub between two computers Great for sharing a printer, scanner, or other USB device between two computers (one computer has access at a time). Attach a powered USB hub that is connected to keyboard, mouse, and USB graphics adapter for an all-USB KVM solution Switch works with any USB-enabled computer without drivers - attached devices may require drivers as usual. LED indicator lights show which connected computer has control of the attached devices SPECIAL NOTE: Not recommended for switching mass storage devices such as hard drives, flash drives, camera memory cards, etc. For best results, we *highly recommend* using the provided 3ft/1m cables to connect the USB switch to your computers and to keep the USB cable which connects your peripheral to the USB switch under 6ft/1.8m. We love our Plugable products, and hope you will too. All of our products are backed with a 1 year limited parts and labor warranty as well as Seattle-based email support. The USB2-SWITCH2 works without drivers on any USB-enabled computer (Windows, Mac, Linux) The switch can connect USB 2.0/1.1-compliant devices and hubs, but to function in USB 2.0 mode, the host PC and attached device or hub both must be USB 2.0 compliant Not recommended for switching mass storage devices such as hard drives, flash drives, camera memory cards, etc as these devices should be unmounted/&#034;ejected&#034; in the host OS prior to switching USB devices that require the full 500mA of bus power provided by USB 2.0 are not recommended for use with this switch