The Elo E104520 is a 55-inch interactive digital signage display with 4K UHD (3840 x 2160) resolution. It features infrared (IR) touch technology, supporting up to 20 simultaneous touches. The display is designed for continuous 24/7 operation in high-traffic environments and includes anti-glare glass. It can be oriented in landscape, portrait, or tabletop modes. Connectivity options include HDMI 2.0, DisplayPort 1.4, USB-C, USB, Ethernet, and serial ports. The unit has an IK07 impact protection rating and is Energy Star qualified.