Bests & Worsts Reviews from Amazon

Had to return this item because it lacks the EDID feature that pretends the monitor is still connected when switching away from a computer. Both my MacBook Pro and Windows PC were moving the desktop and resize windows every time I switched away from them because in both machines the desktop is setup to span 2 monitors. The GCS922U disconnects the monitor when switching, thus causing the computer to automatically move the desktop to the other, still connected monitor. If the resolution of the primary and secondary display aren't exactly the same, the application windows automatically resize and reposition. Arrg! It has only one USB cord to each computer so it merges the keyboard and mouse inputs like a hub before sending to the computer. This may or may not be a good thing for you. I think it's agnostic about what goes into the 2 USB ports and it worked fine with my wireless mouse. I replaced the above unit with the very similar IO Gear GCS932UB ($20 more) because it has the EDID feature. No problems with things moving and resizing anymore. Be aware that this model has the Mouse Emulation feature defaulted to the on position and if you have anything other than an ancient mouse you will likely need to turn the feature off (via keyboard commands) before your mouse will work. My wireless M705 mouse was dead until I turned off the feature. Unlike the GSC922U that led you to this review, the better GCS932UB unit requires the keyboard go into one port and the mouse in another. Using a wireless keyboard/mouse combo with a single USB dongle might be tricky. Read other reviews to see if others can help sort this out for you. Overall I don't recommend the GSC922U unless you have non-laptop (or laptop configured as cloned desktop, same resolution as monitor) single-monitor computers running identical desktop resolutions. Try unplugging and replugging your monitor to each computer with a bunch of windows open and see if anything changes. If anything shifts, the extra $20 for the GCS932UB will be well worth it.