Kensington 60717 Over/Under Keyboard Drawer with SmartFit System, 14-1/2w x 23d, Black Optimizes your viewing angle and typing position for greater computing comfort. Adjusts both keyboard and monitor height to match your SmartFit(TM) personal comfort color. Works over or under desk, according to desk type and SmartFit(TM) guidelines and keeps eyes in line with screen to reduce neck strain. Arms angled for optimal typing position. The max weight capacity of the stand is 80lbs. Extra-wide, easy-glide drawer hides keyboard and mouse when not in use. Monitor stand remains above desk when the drawer is mounted underneath.