The LMD4420 is a compact and lightweight quad screen four-inch panel monitor and is less than two-inches deep. The rack-mountable monitor uses a 2RU size rack with tilt function and is ideal for monitoring in OB Vehicles and studios. It incorporates a high-brightness LCD panel, which offers excellent picture quality even under high ambient light conditions. The LMD4420 accepts NTSC and PAL composite signals with automatic switching. The aspect ratio is 4:3. An optional SDI input adaptor, BKM320D, is available.