| Model | NVR301-08S3 | 
| Video/Audio Input | 
| IP Video Input | 8-ch | 
| Network | 
| Incoming Bandwidth | 64Mbps | 
| Outgoing Bandwidth | 48Mbps | 
| Remote Users | 128 | 
| Protocols | TCP/IP, P2P, UPnP, NTP, DHCP, PPPoE, HTTP, HTTPS, DNS, DDNS, SMTP, RTSP | 
| Video/Audio Output | 
| HDMI/VGA Output | HDMI: 3840x2160/30Hz, 1920x1080/60Hz, 1920x1080/50Hz, 1600x1200/60Hz, 1280x1024/60Hz, 1280x720/60Hz, 1024x768/60Hz
 VGA:
 1920x1080/60Hz, 1920x1080/50Hz, 1600x1200/60Hz, 1280x1024/60Hz, 1280x720/60Hz, 1024x768/60Hz
 | 
| Recording Resolution | 4K/5MP/4MP/3MP/1080p/960p/720p/D1/2CIF/CIF | 
| Audio Output | 1-ch, 3.5mm | 
| Audio Compression | G.711A, G.711U | 
| Synchronous Playback | 4-ch | 
| Liveview display | 1/4/6/8/9 | 
| Corridor Mode Screen | 3/4/5/7/9 | 
| Snapshot | 
| FTP/Schedule/Event Snapshot | 1-ch snapshot, up to D1 resolution | 
| Decoding | 
| Decoding format | Ultra 265/H.265/H.264 | 
| Liveview/Playback | 4K/5MP/4MP/3MP/1080p/960p/720p/D1/2CIF/CIF | 
| Capability | 1 x 4K@30, 4 x 5MP@25, 4 x 4MP@25, 4 x 3MP@25, 4 x 1080p@30, 8 x 720p@30 | 
| Hard Disk | 
| SATA | 1 SATA interface | 
| Capacity | Up to 8TB for each disk (The maximum HDD capacity varies with environment temperature)
 | 
| Smart | 
| VCA Detection by Camera | Intrusion Detection, Cross Line Detection, Enter Area, Leave Area, Audio Detection | 
| VCA Search | Behavior Search | 
| Smart Intrusion Prevention (SIP) by Camera | 4-ch(supports channel 1-4; Alarm only, no image) | 
| General Alarm | 
| General Alarm | Motion, Tampering, Human Body Detection, Video Loss, Alarm Input | 
| Alert Alarm | IP Conflict, Network Disconnected, Disk Offline , Disk Abnormal, Illegal Access, Hard Disk Space Low, Hard Disk Full, Recording/Snapshot Abnormal | 
| External Interface | 
| Network Interface | 1 RJ45 10M/100M self-adaptive Ethernet Interface | 
| USB Interface | Rear panel: 2 x USB2.0 | 
| RS232 | NA | 
| RS485 | NA | 
| Alarm In | NA | 
| Alarm Out | NA | 
| General | 
| Power Supply | 12V DC Power Consumption: ≤5 W (without HDD)
 | 
| Working Environment | -10°C ~ + 55°C (+14°F ~ +131°F), Humidity ≤ 90% RH (non-condensing) | 
| Dimensions (W×D×H) | 260mm × 240mm × 46mm (10.2"×9.4"×1.8 ") | 
| Weight (without HDD) | ≤0.98kg (2.16 lb) | 
| Certification | 
| Certification | CE, FCC, UL, RoHS, WEEE | 
| CE | EN 55032: 2015, EN 61000-3-3: 2013, EN IEC 61000-3-2: 2019, EN 55035: 2017 | 
| FCC | Part15 Subpart B, ANSI C63.4 |