| Model | NVR51T4E |
| Supports (IP Video input) | Network camera / ONVIF Profile S / DVR / NVR / Video encoder / Navigator |
| Input | 4 CH |
| Resolution(IP video input) | 4K / 5M / 4M / 3M / 1080P / 1.3M / 1M / 960H / D1 / VGA / CIF |
| Maximum Frame Rate (IP video input) | 120 FPS |
| Output (Video output) | HDMI 1.4 (4K 30P) / VGA 1080P |
| Split Screen | 1 / 4 split division, sequence mode, freeze, alarm display |
| Digital zoom | Up to 64× on live and playback |
| Video Compression | H.264 / H.265 |
| Maximum Network Throughput | 32Mbps |
| Recording Resolution | CIF ~ 4K |
| Frame Rate | Single channel up to 1080P 60 FPS record |
| Application/ Recording Mode | Manual, schedule (continue, event, none) |
| Recording schedule | Each channel 7day × 24 hours time table, recording mode configurable |
| Alarm event actions | Motion grid (20×12, multi-level sensitivities) / network camera event / DI / metadata |
| Metadata options | POS RFID AND PIN CONTROLLER USER DEFINED 2 BARCODE SCANNER GPS LPR (Denial, Allowed, Visitor) TEMPERATURE (Temp & Face, Temp for Environment) |
| Alarm Notification (Recording) | Alarm notification iOS、android / E-Mail / FTP / buzzer / DO |
| Playback Search | Alarm event / Operation event / System event / Meta data event / Time search |
| Playback Display | 4CH synchronous playback |
| Playback Resolution | CIF ~ 4K |
| Max. frame rate (Playback) | Up to 1080P 60FPS |
| Playback Speed | Fast rewind 2× ~ 64× / Fast forward 2× ~ 64× / Slow motion 1/2 ~ 1/16 |
| Internal HDD / Swap Drive Bay | 1 × 3.5" HDD (Up to 8TB supported) |
| USB Flash Disk(Backup) | Up to 32 GB supported |
| Network Backup | Via HTTP / FTP / Network Places |
| DVD DVD/RW(Backup) | External USB DVD / RW |
| Audio Input | 4 CH (Network camera), G.711 8K |
| Audio Output | RCA × 1 (0.7Vp-p, 300 Hz to 3KHz) |
| Network Camera Two Way Audio / IP camera 2-way audio | Yes |
| Network ports | RJ-45 Gigabit Ethernet × 1, RJ-45 100Mbps PoE × 4 (802.3af) |
| Protocols | ARP / TCP/IP / UDP / HTTP / HTTPS / SMTP / SNMP / FTP / DDNS / PPPoE / NTP / RTP / RTSP / DHCP/ ONVIF Profile S |
| Web (Network) | Direct internet browser access / Multiple users access |
| Mobile phone | iOS / Android supported |
| P2P(Network) | APP scan QR Code / UID connection |
| RTSP service | RTP UDP/ RTSP TCP supported |
| IPScan / WS-Discovery( Network ) | Network camera plug and play via PoE port, otherwise WS-Discovery and IP Scan, automatically quick IP address setup for network cameras also available |
| Network | Live / playback / backup / menu configuration / event log |
| VMS support | Navigator |
| Backup / Playback (Software) | Remote Playback Manager / Backupman, multiple NVRs file download and multi-channel playback |
| Ports | DI × 4 and DO × 1 (With programmable condition) |
| Reports( System ) | Alarm event, operation, configuration and system execution log full reports exporting over HTTP or USB |
| Authentication | User authentication with feature configurable and IP address blocking |
| Languages | Arabic, Traditional Chinese, Simplified Chinese, English, French, German, Hungarian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Turkish |
| HDD Inspection(System) | S.M.A.R.T monitoring / File system de-fragmentation/ IO read write error |
| Recording day | Automatic recording day calculator |
| Time | Daylight saving / NTP / External USB GPS time sync / Keyboard |
| PTZ protocol | HTTP / ONVIF |
| Keyboard Keypad | PIH-931D keyboard input (Connector box required) |
| USB to RS-232 | Record external metadata via USB to RS-232 cable, display at live and playback |
| Remote Controller | Remote controller addressable up to 255 NVRs (Optional) |
| Mouse | Mouse click, drag and scroll |
| Microphone | USB Mic (Optional) |
| Wi-Fi Dongle | WiFi and 4G external USB dongle supported (Certified brand only) |
| USB GPS Receiver | Support |
| OS | Embedded Linux Kernel 3.18.20 |
| WDT | Hardware watchdog timer |
| CE | CE : Yes, EMI Class B |
| FCC | FCC : Yes, EMI Class B |
| Power Supply | DC 48V 1.35A 65W (Max) for HDDs and cameras |
| Operating temperature | 0°C ~ 45°C |
| Operating humidity | 5% ~ 80% |
| Dimensions | 360 × 316 × 60 mm |
| Weight | ≈2.5 KG (Without hard drive) |
