MMR-40 Full-function, NMEA 2000 network wired remote controller with full color LCD display. The MMR-40 is a NMEA 2000 Network Controller designed to add full-function, auxiliary control to MediaMaster source units. Outfitted with a NMEA 2000 Micro-C connector, the MMR-40 interfaces directly with vessel networks to automatically recognize the connected host MediaMaster source unit. All host source unit controls and screen info are then mirrored onto the MMR-40 fts full-color, 2.8-inch LCD display, resulting in a complete MediaMaster user experience. The MMR-40 is equipped with independent display theme and lighting controls for maximum mounting location flexibility, regardless of the settings on the host source unit. Engineered for real-world marine (and many outdoor) applications, its weatherproof (IP66 rated) chassis is built to withstand the harshest environments. The MMR-40 includes the following features: Note: The MMR-40 is not a stand-alone receiver and does not function without a connected MediaMaster source unit. All remote control functionality of the MMR-40 is solely derived from the host source unit.