Dahua NVR4104-4KS2

System Main Processor Industrial-grade embedded processor OS Embedded Linux Operation Interface Web/operating in local GUI Perimeter Protection by Camera Performance 4 channels AI Search Search for pictures by channel, time and event type Face Detection by Camera Performance 4 channels Face Attributes 6 attributes: Gender, age, glasses, expression, mouth mask, and beard AI Search Search for pictures by channel, time and face attributes SMD Plus by Camera Performance 4 channels AI Search Search by target classification (human, vehicle) Video Access Channel 4 Network Bandwidth Access: 80 Mbps; Storage: 80 Mbps; Forward: 60 Mbps Resolution 8MP; 6MP; 5MP; 4MP; 3MP; 1080p; 720p; D1 Decoding Capability 4 × 1080p@30 fps Video Output 1 × VGA output, 1 × HDMI output, supports simultaneous video sources output for VGA and HDMI Multi-screen Display 1 , 4 views Third-party Camera Access ONVIF; RTSP Compression Video Smart H.265/H.265/Smart H.264/H.264/MJPEG Audio PCM/G711A/G711U/G726/AAC Network Network Protocol HTTP; HTTPS; TCP/IP; IPv4/IPv6; UPnP; SNMP; RTSP; UDP; SMTP; NTP; DHCP; DNS; IP Filter; DDNS; FTP; Alarm Server; IP Search (Support Dahua IP camera; DVR; NVS; etc.); P2P; auto register Mobile Phone Access Android; iOS Interoperability ONVIF(profile T/S/G); CGI; SDK Browser Chrome; IE9 or later; firefox Record Playback Multi-channel Playback Up to 4 channels for playback Record Mode Manual record; alarm recording; SMD recording; smart recording Storage Local HDD; network Backup USB storage device Playback Function 1. Play/pause/stop/slow/quick/backward/by frame 2. Full screen, backup (video clip/file), partial zoom in, and audio on/off Storage Disk Group Yes Alarm General Alarm Motion detection, privacy masking, video loss, scene changing, PIR alarm, IPC external alarm Anomaly Alarm Camera disconnection, storage error, disk full, IP conflict, MAC conflict, login locked, and cybersecurity exception Intelligent Alarm Face detection, perimeter protection (intrusion and tripwire), IVS, people counting, heat map, and SMD alarms Alarm Linkage Recording, snapshot, audio, buzzer, log, preset, and email External Port Audio Input 1 × RCA input Audio Output 1 × RCA output HDD 1 SATA III ports, up to 10 TB for a single HDD. The maximum HDD capacity varies with environment temperature USB 2 (1 × front USB2.0; 1 × back USB2.0) HDMI 1 (supports up to 4K resolution output) VGA 1 Network 1 × RJ-45, 10/100 Mbps self-adaptive Ethernet port General Parameter Power Supply 12 V DC, 2 A Power Consumption < 10 W (HDD not included, idling) Net Weight 0.81 kg (1.79 lb) Gross Weight 1.41 kg (3.11 lb) Product Dimensions 260 mm × 232.5 mm × 50.3 mm (10.24" × 9.15" × 1.98") (W × L × H) Package Dimensions 89 mm × 333 mm × 315 mm (3.50" × 13.11" × 12.40") (W × L × H) Operating Conditions –10 °C to +55 °C (+10 °F to +131 °F) Storage Conditions 0 °C to +40 °C (32 °F to 104 °F) Operating Humidity 10?~93? Storage Humidity 30%~85% Operating Altitude 3000 m (9842.52 ft) Installation Desktop mounted Certifications CE: EN62368-1; EN55032,EN55024, EN55035, EN61000-3-2, EN61000-3-3 EN50130-4 FCC: Part 15 Subpart B