ViewSonics VX2753mh-LED features an LED backlight 27" ultra-thin widescreen monitor with up to 40% energy savings compared to a regular 27" monitor. Environmentally friendly mercury free VX2753mh-LED offers Full HD 1920x1080 resolution, two HDMI inputs, external power supply, 1ms response time (through over-drive technology), 30,000,000:1 MEGA dynamic contrast ratio, book stand option and SRS Premium Sound. Ideal for both home and office with a glossy black finish. The aspect ratio adjustment feature automatically senses the input single and will not stretch a 4:3 signal but instead will position the image in the middle of the screen with side bars. A 3-year limited warranty, the industrys best pixel performance policy, energy saving Ecomode and Windows 7 certification, make VX2753mh-LED a great long term investment.