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NVR / Recorders › NVR301-04B-LP4-IQ / 08B-LP8-IQ / 16B-LP8-IQ
Uniview NVR301-B-LP-IQ Series
4/8/16-Channel PoE 1-HDD Smart Network Video Recorder NVR301-04B-LP4-IQ / NVR301-08B-LP8-IQ / NVR301-16B-LP8-IQ — view 1
4/8/16-Channel PoE 1-HDD Smart Network Video Recorder NVR301-04B-LP4-IQ / NVR301-08B-LP8-IQ / NVR301-16B-LP8-IQ — view 2
4/8/16-Channel PoE 1-HDD Smart Network Video Recorder NVR301-04B-LP4-IQ / NVR301-08B-LP8-IQ / NVR301-16B-LP8-IQ — view 3
4/8/16-Channel PoE 1-HDD Smart Network Video Recorder NVR301-04B-LP4-IQ / NVR301-08B-LP8-IQ / NVR301-16B-LP8-IQ — view 4
Uniview (UNV)B-LP-IQ Series · 1× SATA HDD · Built-in PoE
1-HDD PoE Network Video Recorder · B-LP-IQ Series

NVR301-04B-LP4 / 08B-LP8 / 16B-LP8-IQ

4 / 8 / 16-channel PoE network video recorder — built-in PoE ports power and connect cameras over a single cable, Ultra 265 compression, 4K HDMI output, records cameras up to 12MP, built-in Smart Function with face and vehicle detection.

12MP · max recordingUltra 265 · low storage4K HDMI · + VGA simultaneous4/8 PoE · built-in ports1× SATA · up to 24 TBONVIF · certified
Choose your size — three models on this page
Rule of thumb: count your PoE cameras against port count, not just channel count — the 16-channel 16B-LP8-IQ still ships with only 8 built-in PoE ports, so channels 9–16 need cameras powered another way (a separate PoE switch or local 12V power). The 04B-LP4-IQ (4 ports) and 08B-LP8-IQ (8 ports) match their channel count exactly. Highlighted rows in the spec table below show every other difference between the three.
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Lead time · In stock: at your forwarder’s China warehouse 3 days after payment · Not in stock: 7–15 working days · Then air 5–10 days / sea 25–45 days to your port

Terms · Sample orders welcome · Quotation / PI fixes models, prices, Incoterms (EXW or FOB, each quoted separately), lead time and T/T payment · Defective units: free spare units agreed per order (quantity depends on order size) and written into the quotation · Warranty: up to 5 years on Zhongxin Shutong industrial switches, manufacturer warranty on other brands · Full terms, warranty & RMA

How many terabytes for your channels and days? Use the storage calculator →

Need the PDF datasheet? Get it on WhatsApp →
Compliance:CEFCCULRoHSWEEEONVIFNDAA
Corporate orders are registered with the manufacturer under your company name — genuine supply you can verify at the source.
4/8/16Channel options
80 MbpsIncoming bandwidth
24 TBMax HDD capacity
4KHDMI output

The Uniview NVR301-B-LP-IQ Series is a 1-HDD PoE network video recorder offered in three sizes: NVR301-04B-LP4-IQ (4-ch, 4 built-in PoE ports), NVR301-08B-LP8-IQ (8-ch, 8 built-in PoE ports) and NVR301-16B-LP8-IQ (16-ch, 8 built-in PoE ports). All three record cameras up to 12MP with Ultra 265 / H.265 / H.264 compression, output simultaneously over 4K HDMI and VGA, and include built-in Smart Function covering face detection, face comparison, vehicle detection (LPR) and traffic monitoring. One SATA bay takes a hard disk up to 24 TB; the local interface is available in 38 languages including Spanish (Latin America), Portuguese (Brazil) and French.

Is this the right recorder for you?

Plain-language guide for buyers and installers — based only on what this recorder actually does.

Small shops & homesThe 4-ch 04B-LP4-IQ ships with 4 built-in PoE ports and Smart Function — plug in four PoE cameras with one Ethernet cable each, no separate power adapters or switch needed.
Growing businessesNeed more than 8 cameras? The 08B-LP8-IQ/16B-LP8-IQ both give you 8 built-in PoE ports — the 16-ch model adds channels 9-16 for cameras powered another way as the site grows.
Simplified cablingOne Ethernet cable per camera carries both power and video — skip separate 12V power runs, adapters and injectors on every built-in PoE port.
Remote viewing on phoneP2P protocol built in — the owner checks the shop from a phone app without a fixed IP or network skills.
Local-language interface38 GUI languages including Spanish (Latin America), Portuguese (Brazil), French, Korean and Japanese — your customer operates it in their own language.
Longer video retentionUltra 265 roughly halves file size versus H.264 — the same 24 TB disk keeps months more footage even at 12MP.
Not the right pick if you need…
  • More PoE cameras than built-in ports — the 16-ch model has only 8 built-in PoE ports; channels 9–16 need an external PoE switch or non-PoE cameras with their own power
  • A second hard disk or RAID — this series has a single SATA bay
  • Gigabit uplink — the network port is 10/100M (fine even at 80 Mbps total bandwidth)
  • Alarm in/out wiring for sirens or sensors — RS485/RS232 and alarm terminals are not present on this model
  • Full Smart-feature channel counts with third-party cameras — deepest face/vehicle AI (up to 8-ch) requires Uniview cameras; normal/third-party cameras are limited to 1-ch face detection, 2-ch SIP or 4-ch UMD

Worried about counterfeits? Order under your own company name.

1 · Company name2 · Corporate bank payment3 · Order registered in your name4 · Verify SN on Uniview's site

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Key Features

Complete list from the official datasheet.

Support Ultra 265 / H.265 / H.264 video formats
Support 4 / 8 / 16-channel input
Support Plug & Play with 4/8 independent PoE network interfaces
Support HDMI and VGA simultaneous output
Support up to 12 Megapixels resolution recording
Support ANR technology to enhance the storage reliability when the network is disconnected
Support cloud upgrade

Power and video on one cable. Search on demand.

Two real capabilities from the datasheet that matter every day: built-in PoE ports that simplify camera installation, and AI search across faces, vehicles and people.

BUILT-IN POE

Camera power and video on one cable

Every model in this series has built-in PoE — 4 ports on the 04-channel model, 8 ports on the 08/16-channel models — each port delivering up to 30 W, with a total budget of 50 W (04) or 75 W (08/16), so IP cameras get power and video over a single Ethernet cable with no separate injector.

SMART SEARCH SUITE

Face, vehicle and people — all searchable

Built-in Face Detection, Face Comparison, Vehicle Detection (LPR) and traffic monitoring feed AcuSearch, AcuTrack, Face Snapshot/Comparison Search and Vehicle Search — up to 8 channels with Uniview cameras — so an investigation that took hours now takes minutes.

Which size fits your project?

Bars show camera capacity per model. Click the model buttons above to switch — the spec table highlights every other difference.

NVR301-04B-LP4-IQ4 built-in PoE ports · live view split 1/4 · face detection up to 4-ch
4cameras
NVR301-08B-LP8-IQ8 built-in PoE ports · live view split up to 1/4/6/8/9 · face detection up to 8-ch
8cameras
NVR301-16B-LP8-IQ8 built-in PoE ports, ch 9-16 need external power · live view split up to 1/4/6/8/9/16 · face detection up to 8-ch
16cameras

Who uses it, where it goes and how to install it

Written for the NVR301-04B-LP4-IQ, 08B-LP8-IQ and 16B-LP8-IQ from the official datasheet: 4, 8 or 16 IP channels, 4 or 8 built-in PoE ports (50 W or 75 W budget, 30 W per port), 80 Mbps incoming bandwidth, 1 SATA bay up to 24 TB, 4K HDMI plus VGA.

Which size suits which installation

  • NVR301-04B-LP4-IQ: shops and homes with up to 4 cameras — A complete small kit: 4 PoE ports with a 50 W budget power four cameras straight from the recorder, so no switch and no camera adapters. The live view splits 1/4, which suits one monitor at the counter.
  • NVR301-08B-LP8-IQ: restaurants, offices and small warehouses — 8 channels and 8 PoE ports with 75 W in total, enough for eight typical fixed cameras of about 6–9 W each. Face detection on up to 8 Uniview face-detection cameras.
  • NVR301-16B-LP8-IQ: sites that will grow past 8 cameras — Same 8 PoE ports and 75 W as the 08B-LP8-IQ, but 16 recording channels: cameras 9–16 connect through a separate PoE switch on the LAN port. Good for a first phase of 8 cameras near the recorder and a later phase farther away.
  • Installers who want fewer parts on site — One cable per camera for power and video, Plug & Play on the built-in PoE ports, P2P for the owner's phone and 38 interface languages for handover in the customer's own language.

Where and how to install the recorder

  • Central point of the camera runs — Because cameras plug straight into the recorder, place it where every camera cable is under 100 m of Cat5e/Cat6 copper. A camera farther away needs a switch or extender closer to it; do not splice cable runs outside a junction box.
  • Ventilation: PoE makes heat — Up to 75 W goes out through the PoE ports, and the datasheet limits large disks to rooms that do not exceed 35 °C. Keep the vents free, do not close it in a small cabinet without airflow, and keep it out of hot ceilings and direct sun.
  • Use the supplied adapter and a UPS — The 04B-LP4-IQ runs on DC 48 V / 1.35 A and the 08B/16B-LP8-IQ on DC 52 V / 1.8 A; a 12 V adapter will not work. There is no power switch, and the cameras on the PoE ports go off with the recorder, so one UPS protects the whole system.
  • LAN port to the router — The single 10/100 Mbps LAN port connects to the router for phone viewing, and on the 16B-LP8-IQ also to the external PoE switch for channels 9–16. Those cameras and remote viewers share that port, so keep the total under the 80 Mbps limits.
  • Disk, shelf and screens — Fit one 3.5-inch SATA surveillance-grade disk before power-on. The 1U case (205 or 270 × 212 × 46 mm) sits on a shelf in a locked room or cabinet; HDMI (up to 4K) and VGA can drive two monitors at once.

Planning table: channels, bandwidth, disk and retention

The 08B-LP8-IQ and 16B-LP8-IQ have the same PoE hardware (8 ports, 75 W); the 16B-LP8-IQ simply records 8 more cameras that are powered elsewhere. The 04B-LP4-IQ has 4 ports and 50 W. All three share the 80 Mbps input and one disk, so retention drops as cameras are added.

NVR301-04B-LP4-IQNVR301-08B-LP8-IQNVR301-16B-LP8-IQ
IP camera channels4816
Built-in PoE ports (10/100 Mbps)488
PoE budget total / per port50 W / 30 W75 W / 30 W75 W / 30 W
PoE cameras at 6 W each488 + 8
PoE cameras at 13 W each355
Power adapterDC 48 V / 1.35 ADC 52 V / 1.8 ADC 52 V / 1.8 A
Bandwidth per channel, all channels used20 Mbps10 Mbps5 Mbps
Hard disk1 × SATA, ≤ 24 TB1 × SATA, ≤ 24 TB1 × SATA, ≤ 24 TB
Live view split1/41/4/6/8/91/4/6/8/9/16
Days on 4 TB, all channels at 4 Mbps23.111.65.8
Days on 24 TB, all channels at 4 Mbps138.969.434.7
  • Pick the 04B-LP4-IQ for up to 4 PoE cameras: the 50 W budget averages 12.5 W per port, enough even for cameras with white light.
  • Pick the 08B-LP8-IQ for 5–8 fixed cameras: 75 W averages about 9.4 W per port, so add up the real camera draws when PTZ or heated cameras are included.
  • Pick the 16B-LP8-IQ when you will pass 8 cameras: plan a separate PoE switch for cameras 9–16 from the start.

Camera counts assume a typical draw of 6 W for a fixed IR camera and 13 W for a camera with heavy white light or a small PTZ, within the 30 W per-port limit; check the real draw on each camera datasheet. Retention assumes continuous recording at 4 Mbps per camera: days = TB × 10^12 ÷ (cameras × 4,000,000 ÷ 8 × 86,400). The 24 TB maximum applies only if the room stays at or below 35 °C.

Full Specifications

Complete official specifications from the manufacturer's datasheet (technical values in English).

Highlighted rows differ between the three models:NVR301-04B-LP4-IQ · 4-chNVR301-08B-LP8-IQ · 8-chNVR301-16B-LP8-IQ · 16-ch

Decoding

Decoding FormatUltra 265, H.265, H.264
Decoding Capability04B-LP4-IQ · Smart Off: 2×12MP@30, 2×4K@30, 4×4MP@30 | Smart On: 2×4K@30, 4×4MP@3008B-LP8-IQ · Smart Off: 2×12MP@30, 2×4K@30, 4×4MP@30, 8×1080P@30 | Smart On: 2×4K@30, 4×4MP@30, 8×1080P@3016B-LP8-IQ · Smart Off: 2×12MP@30, 2×4K@30, 4×4MP@30, 10×1080P@30, 16×720P@30 | Smart On: 2×4K@30, 4×4MP@30, 8×1080P@30, 16×720P@30
Decoding Capability DescriptionThe resolution of each channel cannot exceed 8192 pixels in length and 4096 pixels in width
Audio CompressionG.711A, G.711U

Network

Incoming Bandwidth80 Mbps
Outgoing Bandwidth80 Mbps
Remote Users128
ProtocolsTCP/IP, P2P, NTP, DHCP, PPPoE, HTTP, HTTPS, DNS, DDNS, SNMP, SMTP, RTSP, IPv6, IPv4, 802.1x, UPnP
Browser (Plugin)IE10, IE11, Chrome 45+, Edge 79+, Firefox 52+

Video/Audio Input

IP Video Input04B-LP4-IQ · 4-ch08B-LP8-IQ · 8-ch16B-LP8-IQ · 16-ch
RCA Audio Input1-ch
IP Speaker (Peripheral Input)16-ch
POS (Peripheral Input)All channels

Video/Audio Output

HDMI Output4K (3840×2160)/30 Hz, 1920×1080/60 Hz, 1920×1080/50 Hz, 1600×1200/60 Hz, 1280×1024/60 Hz, 1280×720/60 Hz, 1024×768/60 Hz
VGA Output1920×1080/60 Hz, 1920×1080/50 Hz, 1600×1200/60 Hz, 1280×1024/60 Hz, 1280×720/60 Hz, 1024×768/60 Hz
RCA Audio Output1-ch
Liveview Display04B-LP4-IQ · 1/408B-LP8-IQ · 1/4/6/8/916B-LP8-IQ · 1/4/6/8/9/16
Corridor Mode Screen04B-LP4-IQ · 3/408B-LP8-IQ · 3/4/5/7/916B-LP8-IQ · 3/4/5/7/9/10/12/16
Two-way Audio1-ch, RCA (using the audio input and output)
SnapshotFTP/Schedule/Event Snapshot; 4-ch snapshot (max. D1 (720×576) video resolution, with D1 snapshot resolution)

Recording

Recording Resolution12 MP / 8 MP / 6 MP / 5 MP / 4 MP / 3 MP / 1080P / 960P / 720P / D1 / 2CIF / CIF
Num of Concurrent Playback16-ch

Smart Function

Smart by IPCAll channels (up to 8 images/s in total) Face Detection, Face Comparison, Vehicle Detection (LPR), SIP, UMD, Traffic Monitoring
Smart by NVRFace Detection, Face Comparison, Smart Intrusion Prevention (SIP), Ultra Motion Detection (UMD)
Smart by NVR Analyzer ModeSingle Mode (Face Recognition), Single Mode (SIP), Single Mode (UMD), Single Mode (AcuSearch/AcuTrack); modes cannot activate simultaneously, only one mode can activate at a time
VCA SearchAcuSearch, AcuTrack, Face Snapshot Search, Face Comparison Search, Motor Vehicle Search, Non-Motor Vehicle Search, Human Body Search, General Search, People Counting Report, Heat Map
Acu Search PerformanceAll channels with UNV SIP/UMD Camera
Acu Track PerformanceAll channels with UNV SIP/UMD Camera
by NVR (Face Detection capacity)04B-LP4-IQ · Up to 4-ch with UNV Face Detection Camera | Up to 1-ch with normal camera (UNV and Third-part brand, 1-ch 2MP)08B-LP8-IQ · Up to 8-ch with UNV Face Detection Camera | Up to 1-ch with normal camera (UNV and Third-part brand, 1-ch 2MP)16B-LP8-IQ · Up to 8-ch with UNV Face Detection Camera | Up to 1-ch with normal camera (UNV and Third-part brand, 1-ch 2MP)
Search by ImageSupport
SIP by NVR with normal camerasUp to 2-ch with normal camera (UNV and Third-part brand, 2-ch 2MP, 1-ch 4MP)
UMD by NVR with normal camerasUp to 4-ch with normal camera (UNV and Third-part brand, 4-ch 2MP, 2-ch 4MP, 1-ch 4K)

Alarm

General AlarmDefocus Detection, Scene Change Detection, Object Left Behind, Object Removed, Auto Tracking, Motion Detection, Tampering, Human Body Detection, Video Loss, Alarm Input, Audio Detection
Alert AlarmIP Conflict, Network Disconnected, Disk Offline, Disk Abnormal, Illegal Access, Hard Disk Space Low, Hard Disk Full, Recording/Snapshot Abnormal

GUI Language

GUI Language38 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

SATA1 SATA Interfaces
CapacityUp to 24 TB for each HDD (the maximum HDD capacity varies with environment temperature and hard disk size; the environment temperature for use should not exceed 35°C)

External Interface

Network Interface1 RJ45 10 M/100 M self-adaptive Ethernet Interface
USBRear panel: 1 × USB2.0, 1 × USB3.0
RS485N/A
RS232N/A
Alarm InN/A
Alarm OutN/A
Power Supply04B-LP4-IQ · DC 48 V/1.35 A08B-LP8-IQ · DC 52 V/1.8 A16B-LP8-IQ · DC 52 V/1.8 A
Power SwitchN/A

PoE

PoE Interface04B-LP4-IQ · 4 RJ45 10 M/100 M self-adaptive Ethernet Interface08B-LP8-IQ · 8 RJ45 10 M/100 M self-adaptive Ethernet Interface16B-LP8-IQ · 8 RJ45 10 M/100 M self-adaptive Ethernet Interface
Max Power04B-LP4-IQ · Max 30 W for single port, Max 50 W in total08B-LP8-IQ · Max 30 W for single port, Max 75 W in total16B-LP8-IQ · Max 30 W for single port, Max 75 W in total
Supported StandardIEEE 802.3at, IEEE 802.3af

Working Environment

Working Temperature-10 °C to 55 °C (14 °F to 131 °F)
Working Humidity≤ 90% RH (non-condensing)
Power Consumption (without HDD)≤ 12 W

Dimensions

Weight (without HDD)04B-LP4-IQ · ≤ 2.7 kg (6.0 lb)08B-LP8-IQ · ≤ 4 kg (8.8 lb)16B-LP8-IQ · ≤ 4 kg (8.8 lb)
Height1U
Dimensions04B-LP4-IQ · 205 mm × 212 mm × 46 mm (8.1" × 8.3" × 1.8")08B-LP8-IQ · 270 mm × 212 mm × 46 mm (10.6" × 8.3" × 1.8")16B-LP8-IQ · 270 mm × 212 mm × 46 mm (10.6" × 8.3" × 1.8")

Certification

CertificationCE; FCC; UL; RoHS; WEEE
CEEN 55032, EN 61000-3-3, EN IEC 61000-3-2, EN 55035
FCCPart15 Subpart B
ComplianceNDAA Compliant

Dimensions

Engineering drawing reproduced 1:1 from the official datasheet (04B-LP4-IQ shown; 08B-LP8-IQ/16B-LP8-IQ share the same height and depth on a longer 270mm chassis — see table).

NVR301-04B-LP4-IQ / NVR301-08B-LP8-IQ / NVR301-16B-LP8-IQ dimensions drawing in mm
unit: mm (in.) — 04B-LP4-IQ shown
Dimensions04B-LP4-IQ · 205×212×46mm (8.1"×8.3"×1.8")08B-LP8-IQ · 270×212×46mm (10.6"×8.3"×1.8")16B-LP8-IQ · 270×212×46mm (10.6"×8.3"×1.8")
Weight (without HDD)04B-LP4-IQ · ≤2.7kg (6.0lb)08B-LP8-IQ · ≤4kg (8.8lb)16B-LP8-IQ · ≤4kg (8.8lb)
Power supply04B-LP4-IQ · DC48V/1.35A08B-LP8-IQ · DC52V/1.8A16B-LP8-IQ · DC52V/1.8A
Consumption (without HDD)≤ 12 W
NVR301-B-LP-IQ series rear panel
Rear panel — all interfaces (04B-LP4-IQ shown, 4 PoE ports; 08/16-channel models have 8 PoE ports)

Optional Mounting Accessories

Order together with the camera to save shipping.

4/8/16 Channel PoE AI NVR FAQ — NVR301-B-LP-IQ

How many channels and PoE ports does each model have?
The NVR301-04B-LP4-IQ records 4 channels with 4 built-in PoE ports; the 08B-LP8-IQ records 8 channels with 8 PoE ports; the 16B-LP8-IQ records 16 channels with 8 PoE ports, so on the 16-channel model the remaining cameras connect through your network switch.
What AI search functions do I get?
Face detection and comparison, vehicle detection (LPR), SIP and UMD run camera-side on all channels and NVR-side too. Recordings become searchable through AcuSearch, AcuTrack, face snapshot/comparison search, motor and non-motor vehicle search, human body search and search by image — you find an event in minutes instead of scrubbing hours of footage.
What is the maximum recording resolution and HDD size?
Recording goes up to 12MP per channel, and the single SATA bay accepts a surveillance hard drive up to 24 TB (usable maximum varies with ambient temperature and disk model). Ultra 265 compression stretches that capacity to weeks more retention than H.264 recorders.
Can I use it with cameras from another brand?
Yes. With normal third-party cameras the NVR itself still runs face detection on 1 channel at 2MP, SIP on up to 2 channels at 2MP (or 1 at 4MP) and UMD on up to 4 channels at 2MP. Full AcuSearch/AcuTrack performance across all channels requires UNV SIP/UMD cameras.
How is it powered and what bandwidth does it handle?
The 04B-LP4-IQ uses a DC 48V/1.35A supply; the 08B-LP8-IQ and 16B-LP8-IQ use DC 52V/1.8A, feeding both recorder and PoE ports. Incoming and outgoing bandwidth are 80 Mbps each, and up to 128 remote users can connect over P2P, DDNS, HTTPS or RTSP.
Does it output 4K to a monitor?
Yes — HDMI reaches 4K (3840×2160) at 30 Hz and VGA reaches 1920×1080 at 60 Hz. Live view splits go up to 16 windows on the 16B-LP8-IQ, corridor mode is available, and the 38-language GUI includes Latin American Spanish and Brazilian Portuguese.
Is the 75 W PoE budget on the NVR301-08B-LP8-IQ enough for 8 cameras?
For ordinary fixed cameras, yes: 8 cameras at about 6 W use about 48 W of the 75 W. Each port gives up to 30 W (IEEE 802.3af/at), but the total is the real limit, averaging about 9.4 W per port, so with PTZs or cameras with white light and heaters add up their maximum draws: for example 5 cameras at 13 W already use 65 W. Put high-power cameras on a separate PoE switch or their own adapter.
How do I connect cameras 9–16 on the NVR301-16B-LP8-IQ?
Connect them to a separate PoE switch and run one cable from that switch to the recorder's LAN port (or to the same router the LAN port uses); then add the cameras in the recorder as network channels. Those 8 cameras arrive through the single 10/100 Mbps LAN port, together with remote viewing traffic, so keep their bitrates moderate: 8 cameras at 4 Mbps are 32 Mbps.
What happens to the cameras on the NVR301-B-LP-IQ PoE ports during a power cut, and what UPS do I need?
They switch off together with the recorder, because the recorder powers them. Its adapter is rated DC 48 V / 1.35 A (about 64.8 W) on the 04B-LP4-IQ and DC 52 V / 1.8 A (about 93.6 W) on the 08B/16B-LP8-IQ, so a small line-interactive UPS sized for roughly 100–150 W plus the router covers it; the bigger the battery, the longer it runs. When power returns the recorder starts by itself (there is no power switch) and the cameras come back.
Which hard drive should I use in the NVR301-08B-LP8-IQ and how many days will it record?
One 3.5-inch SATA surveillance-grade drive, built for 24/7 writing; the datasheet allows up to 24 TB only if the room stays at or below 35 °C, which matters here because the PoE ports add heat. With 8 cameras at 4 Mbps recording continuously, 4 TB keeps about 11.6 days and 24 TB about 69.4 days. Recording on motion or smart events extends this.
Are cameras plugged into the NVR301-04B-LP4-IQ PoE ports added automatically?
The datasheet lists Plug & Play on the 4/8 independent PoE ports, which is designed so a camera plugged into a built-in port is found and added without manual IP setup; this is how Uniview cameras behave. Cameras from other brands may need to be added by hand with their user name and password. Cameras behind an external switch on the LAN port are always added from the camera search list.
Can face recognition, intrusion detection and AcuSearch all run at once on the NVR301-B-LP-IQ?
Not when the recorder does the analysis: NVR analyzer mode runs one mode at a time (Face Recognition, SIP, UMD or AcuSearch/AcuTrack). When Uniview smart cameras do the analysis (Smart by IPC), events from all channels are received together, up to 8 images per second in total. So if one site needs faces at the door and intrusion at the fence, use smart cameras rather than relying on the recorder.

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