The Samsung 400DX-3 40" Professional LCD Display is a 1920 x 1080 native screen that's designed for heavy use in public environments. The 400DX-3 features a brightness rating of 700 cd/m², a dynamic contrast of 10000:1, an anti-glare screen, and digital & analog connections to accommodate a wide variety of video sources.

The 16:9 screen features two HDMI inputs, a DisplayPort and a VGA input, and inputs for analog composite and component video. There's also a DVI-D output for looping a signal to another monitor – a key feature for public-display environments that require repeated content across multiple screens. This screen is designed to serve as part of a matrix as large as 10 x 10, and control via Multi Display Control makes it easy to update content remotely. There's RS-232 input and output for remote control of the screen, as well as IR in/out via stereo mini.

The 40" 400DX-3 features an ambient brightness sensor that triggers the dimming of the screen in lower-ambient-light sit