Mouse Jiggler - The hardware-based Mouse Jiggler prevents your computer from going to sleep while you work or play. This plug-and-use USB device comes in three versions and creates constant mouse activity so your computer won t go idle and trigger screen savers or sleep mode-eliminating the need to log in repeatedly.Specifications Automatic mouse/keyboard activity emulation dongle fits standard USB ports programmable. Operating Systems. Windows XP or later. Windows Server 2003 or later. Mac OS X. Most modern Linux distributions. Item weight - 0.01 lbs. - SKU: ZX9DH3020001000013