The Annso range of Quad Screen Splitter (QSS) LCD console drawers represents the latest technology in KVM switching. The key advantage over conventional KVM switches is that it allows you to simultaneously display and administer 4 computers on a single console. It combines KVM features and a digital multi-viewer scaling and converting videos at both inputs and output. Configure with 17 or 19 or 17.3 inch A-Grade LCD panels, integrated 4 ports DVI-D/USB/Audio/HUB, support Full screen and Quad screen mode. The self-locking rails when in the fully extended open position and the ultra convenient auto lock release when the LCD panel is closed, make for simple and hassle free operation. Features: * 1U single rail with 17 inch or 19 inch or 17.3 inch LCD Monitor * Four Independent DVI-D/USB/Audio/HUB interface for each PC. * Support Full screen and Quad screen mode * On Quad Screen mode, by Mouse moving across screen boundary or via Push Button or Hotkey to switching port * Rear 2x USB 2.0 Type A, Sharing USB peripheral Device for each computer. (Ex, flash disk, hard driver, KB/Mouse) * Build in 2x2w stereo speakers. * Durable 104-key keyboard and touch pad. * Quick and simple installation. * Self-locking and auto release rails for ultra convenience.