The MVi-HUB greatly simplifies the configuration of a multi-amp system by allowing all amplifiers of an amplifier network to appear in a single TüN® software session. Networking synchronizes the DSP presets of all amplifiers and distributes commands from a single, optional Digital Remote Controller (M-DRC-50 or DRC-205, sold separately) across the entire amplifier network. DRC commands can include Master Volume, Subwoofer Level, Fader, Zone Level and Preset Selection (functionality varies by model). In the box Network hub Two mounting screws Specifications Physical dimensions (Height) 3.98" (101 mm) Physical dimensions (Width) 11.21" (285 mm) Physical dimensions (Depth) 2.05" (52 mm) Control Surface Dust/Water Rating (when properly installed) IPX2 Warranty 3 years Power Input 5 VDC Software updates USB NMEA 2000® ports 1 (Micro-C connector - Currently not used - intended for future development) Usb 2.0 ports 1 (Software update only)