SECULINK NR21P6-16D 16CH 4K PoE NVR: 16-Port PoE, H.265+ Compression, 2-Bay 8TB, Smart Motion Detection & VCA Alerts

["16-Port PoE + 4K Decoding for Easy Full-Coverage Surveillance - Built-in 16 IEEE 802.3 af/at PoE ports (100Mbps) – power & data via 1 cable, no extra adapters. Supports 1-ch@8MP/3-ch@4MP/6-ch@1080P decoding + HDMI 4K/VGA dual output, perfect for stores, warehouses, offices.","H.265+ Saves 75% Storage, 2-Bay 16TB Max Local Space - H.265+ compression cuts storage needs by 75% vs H.264. 2 SATA ports (8TB/HDD, 16TB total) + smart search/playback – find key footage fast, no endless scrolling.","4-CH Smart Motion Detection + VCA Alerts (Reduce False Alarms) - 4-channel Motion Detection 2.0 distinguishes humans/vehicles (filters wind/light interference). Supports line-crossing/intrusion VCA – optional \"/ALARM\" model adds 4-in/1-out alarms for proactive security.","Wide Compatibility + Guarding Vision Remote Access - Works with most IP cameras (ONVIF S/G, TCP/IP, IPv4/IPv6). 1 Gigabit LAN port + Guarding Vision app – view/playback/configure via phone/PC, 32 remote users supported.","1U Rack-Mount + Industrial Durability (24/7 Use) - 1U chassis (385×315×52mm) fits cabinets/desktops. -10°C~55°C (14°F~131°F) operating range, 100-240VAC wide voltage, ≤15W low power – stable for non-stop surveillance."]