Shenzhen Guowei Security Co., LTD：Security Camera System Manufacturer

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NVR31 Series

4/8 Channel 1-SATA Port 4K Network Video Recorder

> Support Ultra 265/H.265/H.264 video formats
> 4/8 channel input
> Plug & Play with 16 independent PoE network interfaces
> Support mainstream cameras of ONVIF conformance 2020 (Profile S, Profile G, Profile T ) and RTSP protocols
> Support 1 ch HDMI, 1 ch VGA. HDMI up to 4K (3840x2160) resolution
> VGA and HDMI simultaneous output
> ANR technology to enhance the storage reliability when the network is disconnected
> Support cloud upgrade
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Model GW-NVR3108-P8-S3 GW-NVR3104-P4-V3-IQ GW-NVR3108-P8-V3-IQ GW-NVR3108-V3-IQ
Decoding
Decoding Format Ultra 265, H.265, H.264
Decoding Capability 1 x 4K, 4 x 5MP
4 x4MP, 4 x 3MP,
 4 x 1080P, 8 x 720P 		Smart Off：2 x 12MP, 2 x 4K, 4 x 4MP
Smart On：2 x 4K, 4 x 4MP 		Smart Off：
2 x 12MP, 2 x 4K, 4 x 4MP0, 8 x 1080P
Smart On：
2 x 4K, 4 x 4MP, 8 x 1080P 		Smart Off：
2 x 12MP, 2 x 4K, 4 x 4MP0, 8 x 1080P
Smart On：
2 x 4K, 4 x 4MP, 8 x 1080P
Decoding Capability Description The resolution of each channel cannot exceed 8192 pixels in length and 4096 pixels in width
Audio Compression G.711A, G.711U
Network
Incoming Bandwidth 64Mbps  80 Mbps 80 Mbps 80 Mbps
Outgoing Bandwidth 48Mbps  80 Mbps 80 Mbps 80 Mbps
Remote Users 128 128 128 128
Protocols TCP/IP, P2P, NTP, DHCP, PPPoE, HTTP, HTTPS, DNS, DDNS, SNMP, SMTP, RTSP,  IPv6, IPv4
ONVIF  Cnformance 2020 Version (Profile S, Profile G, Profile T )
Browser(Plugin) Edge (version 79 and above), Firefox (version 52.0 and above), Chrome (version 45 and above)
Video/Audio Input
IP Video Input 8-ch 4-ch 8-ch 8-ch
RCA Audio Input - 1-ch 1-ch 1-ch
Video/Audio Output
HDMI Output 4K (3840 × 2160)/60 Hz, 4K (3840 × 2160)/30 Hz, 1920 × 1080/60 Hz, 1600 × 1200/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz
VGA Output 1920x1080p/60Hz, 1920x1080p/50Hz, 1600x1200/60Hz, 1280x1024/60Hz, 1280x720/60Hz, 1024x768/60Hz 
RCA Audio Output 1-ch 1-ch 1-ch 1-ch
Liveview Display 1/4/6/8/9 1/4 1/4/6/8/9 1/4/6/8/9
Corridor Mode Screen 3/4/5/7/9 3/4 3/4/5/7/9 3/4/5/7/9
Two-way Audio
Two-way Audio - 1-ch, RCA (Using the audio input and output)
Snapshot
FTP/Schedule/Event Snapshot 4-ch snapshot (max. D1 (720 × 576) video resolution, with D1 snapshot resolution)
Recording
Recording Resolution 4K/5MP/4MP/3MP/1080p/960p/720p/D1/2CIF/CIF  12 MP/8 MP/6 MP/5 MP/4 MP/3 MP/1080P/960P/720P/D1/2CIF/CIF
Num of Concurrent Playback 8-ch 4-ch 8-ch 16-ch
Smart
VCA Detection by IPC - Face Detection, Face Comparison, Vehicle Detection, SIP (Intrusion Detection, Cross Line Detection, Enter Area, Leave Area), Ultra Motion Detection (UMD)
Smart by NVR - Face Detection, Face Comparison, Smart Intrusion Prevention (SIP), Ultra Motion Detection (UMD)
VCA Search - Face Snapshot Search, Face Comparison Search, Motor Vehicle Search, Non-Motor Vehicle Search, Human Body Search, General Search, Heat Map, AcuSearch
Smart by IPC - All channels (up to 8 images/s in total)Face Detection,Face Comparison,Vehicle Detection,SIP,UMD
Search by Image - Support
Vehicle
Picture
Library 		- - - Up to 5 vehicle picture libraries, with up to 25,000 vehicle pictures in total
SIP by NVR - 2-ch 2-ch 2-ch
UMD by NVR - 4-ch 4-ch 4-ch
Alarm
General Alarm Auto Tracking, Motion
Detection, Tampering, Human Body Detection, Video Loss, Alarm Input, Audio Detection 		Defocus Detection, Scene Change Detection, Object Left Behind, Object Removed, Auto Tracking, Motion
Detection, Tampering, Human Body Detection, Video Loss, Alarm Input, Audio Detection
Alert Alarm IP Conflict, Network Disconnected, Disk Offline, Disk Abnormal, Illegal Access, Hard Disk Space Low, Hard
Disk Full, Recording/Snapshot Abnormal
GUI Language
GUI Language 38 languages: Simplified Chinese, Traditional Chinese, English, Vietnamese, Thai, Turkish, Spanish (Latin
America), Portuguese (Brazil), Spanish, Portuguese, French, German, Italian, Dutch, Polish, Czech, Hungarian, Slovak, Russian, Hebrew, Arabic, Ukrainian, Estonian, Bulgarian, Greek, Romanian, Danish, Swedish, Norwegian, Finnish, Croatian, Slovenia, Serbia, Korean, Japanese, Latvian, Lithuanian, Persian
Hard Disk
SATA 1 SATA Interfaces 1 SATA Interfaces 1 SATA Interfaces 1 SATA Interfaces
Capacity Up to 8 TB for each HDD (The maximum HDD capacity varies with environment temperature) Up to 10 TB for each HDD (The maximum HDD capacity varies with environment temperature)
External Interface
Network Interface 1 RJ45 10 M/100 M 1 RJ45 10 M/100 M 1 RJ45 10 M/100 M 1 RJ45 10 M/100 M
USB Rear panel: 2 x USB2.0 Rear panel: 1 × USB2.0, 1 × USB3.0 Rear panel: 1 × USB2.0, 1 × USB3.0 Rear panel: 1 × USB2.0, 1 × USB3.0
RS485 - - - -
RS232 - - - -
Alarm In - - - -
Alarm Out - - - -
Power Supply 52V DC DC 48 V/1.35 A DC 52 V/1.8 A DC 12 V/2 A
Power Switch - - - -
PoE
PoE Interface 8 RJ45 10 M/100 M self-adaptive Ethernet Interface 4 RJ45 10 M/100 M self-adaptive Ethernet Interface 8 RJ45 10 M/100 M self-adaptive Ethernet Interface -
Max Power Max 30W for single port,Max 75W in total Max 30W for single port,Max 50W in total Max 30W for single port,Max 75W in total -
Supported Standard IEEE 802.3at, IEEE 802.3af IEEE 802.3at, IEEE 802.3af IEEE 802.3at, IEEE 802.3af -
Working Environment
Working Temperature -10 ℃ to 50 ℃ (14 ℉ to 122 ℉)
Working Humidity ≤ 90% RH (non-condensing)
Power Consumption (without HDD) ≤ 8W (without HDD)  ≤ 12W ≤ 12W ≤ 12W
Dimensions
Weight (without HDD) ≤ 2.7Kg (6.0lb) ≤ 2.7Kg (6.0lb) ≤ 2.7Kg (6.0lb) ≤ 2Kg (4.4lb)

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