The Lenovo Think Vision L2251p wide monitor enables you to be environmentally friendly without compromising performance. With arsenic-free glass, this monitor is 29% more efficient than Energy Star 5.0 standard, engineered ahead of future standards. Display Port for easy connection with notebooks & desktops makes the L2251p wide an excellent choice for users seeking productivity improvements in a multi-monitoring environment. The Electronic Product Environmental Assessment Tool (EPEAT) rates the Think Vision L2251p wide in the Gold category.