Doorbird D21DKH, IP VIDEO DOOR STATION, RAL 8004, stainless steel, powder-coated, semi-gloss, Part# 423888883 DigiEver 5 in sata iii hard

5 in sata iii hard drives to your computer externally through usb 3

Metal Diaphragm Technology (MDT) and Magnetic Liquid Suspension (MLS) ensure a super weatherproof speaker

Split an hdmi audio/video source on four separate hdmi displays simultaneously

AC (CM-860) (POP) is a  non-contact AC voltage detection with an over-molded grip for additional stability

Outer Diameter: 5

Doorbird D21DKH, IP VIDEO DOOR STATION, RAL 8004, stainless steel, powder-coated, semi-gloss, Part# 423888883 DigiEver 5 in sata iii hardThe high performance Doorbird D21DKH 423888883, IP VIDEO DOOR STATION, RAL 8004, stainless steel, powder coated, semi gloss is for multi tenant residences and buildings with up to 500 units. Features: Surface and flush mount possible, housings sold separately LAN connection (PoE capable) 2 way audio Ultra wide angle lens, 720p, night vision, 12 IR LEDs 4D motion sensor, RFID reader Keypad, display module 2 freely configurable bistable switching relays