AXIS FA54 Main Unit can connect to four highly discreet AXIS FA Sensor Units for the surveillance of four closely situated indoor areas. The main unit can serve as the basis for a complete video surveillance system—perfect for a small store, bank or office. Or it can be a complementary part of a bigger system where sensor units are required for highly discreet surveillance. - Full frame rate HDTV 1080ps streams from four sensor units - Forensic WDR - Quad view stream, Axis Zipstream and Corridor Format - HDMI output, two-way audio, four configurable input/output ports - Two microSD card slots