Dahua 32 Channel 12MP Dual NIC NVR 4 SATA 20TB HDD DH N54B5N20 Fire & Burglary Safes Be available to auto key Be available to auto key programming and cluster calibrate via OBD Humidity: 0 95% relative humidity non condensing Enclosure: Metal lockable security can (indoor use only) Compliance: Conforms to UL 294 (excludes 1DPOE) Power: 12 VDC Power readers and other door hardware using the built in bus 10A concurrent max on the bus *Power supply and battery not included Manufacturer’s Limited Warranty One to three year warranty against defects in materials CGI Storage Internal HDD Four (4) SATA III Ports 16 Channels Analytics+ Cameras