HP W2271d 21" LED Monitor, 60Hz, 200nits, 1920x1080, Internal Power Supply 21.5-inch LED Monitor, 16:9 Aspect ratio, 200 nits (1920x1080) 60Hz 5 ms response time, up to 16.7 Million colors with FRC technology 90-degree Horizontal and 50-degree vertical viewing angles 1x DVI-D connector, 1x VGA connector, Supports high-bandwidth content Internal power supply (100-240V) 29 watts maximum consumption