




NVR502-08B-P8 / 16B-P16 / 32B-P16-IQ
8 / 16 / 32-channel network video recorder with built-in PoE — Ultra 265 compression, 4K HDMI output, records cameras up to 16MP, dual SATA bays with RAID 1, and built-in Smart Function with face and vehicle detection.
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 →The Uniview NVR502-B-P-IQ Series is a 2-HDD PoE network video recorder offered in three sizes: NVR502-08B-P8-IQ (8-ch, 8 built-in PoE ports), NVR502-16B-P16-IQ (16-ch, 16 built-in PoE ports) and NVR502-32B-P16-IQ (32-ch, 16 built-in PoE ports). All three record cameras up to 16MP 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 people counting / heat map analytics. Two SATA bays each take a hard disk up to 24 TB with RAID 1 support, and 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.
- RS232 serial control — this series has RS485 only, no RS232 port
- RAID 0/5/6 arrays — the 2-bay Disk Array Type supports RAID 1 mirroring only, not striping or parity RAID
- High-power PoE++ cameras — Max Power is capped at 30W per single port (IEEE 802.3at/af standard, not 60W+ PoE++)
- Full 8-channel Smart AI with third-party cameras — the deepest face/vehicle AI (up to 8-ch) requires Uniview cameras; normal/third-party cameras are limited to 2-ch face detection, 4-ch SIP or 8-ch UMD
- 4K @ 60Hz output — HDMI tops out at 4K (3840×2160)/30Hz; 60Hz refresh is only available at 1080p and below
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Key Features
Complete list from the official datasheet.
Sharper footage. Smarter search.
Two real capabilities from the datasheet that matter every day: higher-resolution recording with mirrored dual-bay storage, and built-in AI search across faces, vehicles and people.
Sharper footage, mirrored for safety
Ultra 265 compression keeps recording size efficient even at up to 16MP, and two SATA bays up to 24 TB each can mirror each other with RAID 1 — footage survives a single disk failure.
Face, vehicle and people — all searchable
Built-in Face Detection, Face Comparison, Vehicle Detection (LPR) and People Counting/Heat Map 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.
Who uses it, where it goes and how to install it
Written for the NVR502-08B-P8-IQ, NVR502-16B-P16-IQ and NVR502-32B-P16-IQ from the official datasheet: 8, 16 or 32 channels, 8 or 16 PoE ports (130 W or 240 W), 320 Mbps input (160 Mbps with Smart on), face/SIP/UMD analysis in the recorder itself, 2 SATA bays up to 24 TB each with RAID 1.
Which size suits which installation
- NVR502-08B-P8-IQ: small sites that want AI without AI cameras — Shops and offices with ordinary cameras: the recorder itself can run intrusion (SIP) on up to 4 channels of 2 MP cameras or motion classification (UMD) on up to 8, with 8 PoE ports and 130 W to power them.
- NVR502-16B-P16-IQ: retail and hospitality with watch-lists — Supermarkets, hotels and clinics: face comparison on up to 8 channels with Uniview face-detection cameras, POS text on all channels and up to 16 IP speakers, all 16 cameras powered from 240 W of built-in PoE.
- NVR502-32B-P16-IQ: car parks and campuses — Up to 32 cameras, 16 on built-in PoE and the rest through a switch; with Uniview LPR cameras it keeps up to 5 vehicle picture libraries (25,000 pictures). Plan bitrates carefully: with Smart on, 160 Mbps leaves 5 Mbps per camera.
- Investigators who search instead of scroll — AcuSearch and AcuTrack (all channels with Uniview SIP/UMD cameras), search by image and records for 2 million face and 2 million vehicle snapshots make it fit for loss-prevention teams and security managers.
Where and how to install the recorder
- Cooler spot than a basic NVR — The IQ version is rated -10 °C to 50 °C (the non-IQ NVR502-B-P goes to 55 °C), and the largest disks need the room at 40 °C or less. Mount it in a ventilated 19-inch cabinet with the RM-1U-380 kit (1U, 380 × 322 × 53 mm) or on an open shelf, away from the router's and switch's exhaust.
- Mains supply, UPS and PoE load — The internal supply takes AC 100–240 V and has a power switch. Size the UPS for the recorder (≤ 12 W without disks), two disks and the PoE load — up to 130 W on the 08B-P8-IQ and 240 W on the 16B/32B models — so cameras and analysis keep running in a blackout.
- Disks: RAID 1 and array alarms — Fit two identical surveillance-grade drives and decide at commissioning whether to mirror them (RAID 1, usable space of one disk). The IQ firmware adds Array Damaged and Array Degraded alerts — send them to the owner's phone or e-mail so a failed disk is replaced before the second one goes.
- Aim the cameras for the analysis — Face detection and comparison only work on faces seen nearly head-on: mount entrance cameras at about 2.5–3.5 m, looking along the walking direction, not steeply down. For SIP/UMD keep trees, flags and headlights out of the detection area to cut false alarms.
- PoE runs, extra switch and gigabit LAN — Each PoE port (10/100M, 802.3af/at, max 30 W) feeds one camera over Cat5e/Cat6 copper up to 100 m, with surge protection on outdoor runs. On the 32B-P16-IQ, cameras 17–32, IP speakers and POS devices join through a switch on the 10/100/1000M LAN port.
Planning table: channels, PoE, bandwidth, disk and retention
The key planning point for the IQ series: switching Smart (recorder-side analysis) on halves the incoming bandwidth from 320 to 160 Mbps and lowers decoding, so decide which mode the site runs before you set camera bitrates.
| NVR502-08B-P8-IQ | NVR502-16B-P16-IQ | NVR502-32B-P16-IQ | |
|---|---|---|---|
| IP channels / built-in PoE ports | 8 / 8 | 16 / 16 | 32 / 16 |
| PoE budget (max 30 W per port) | 130 W | 240 W | 240 W |
| Bandwidth per camera, Smart off (320 Mbps) | 40 Mbps | 20 Mbps | 10 Mbps |
| Bandwidth per camera, Smart on (160 Mbps) | 20 Mbps | 10 Mbps | 5 Mbps |
| Decoding, Smart off (H.265) | 4 × 4K@30, 8 × 4MP@30 | 4 × 4K@30, 16 × 1080P@30 | 4 × 4K@30, 32 × 720P@30 |
| Decoding, Smart on | 2 × 4K@30, 8 × 1080P@30 | 2 × 4K@30, 16 × 720P@30 | 2 × 4K@30, 32 × D1 |
| Live view max / local sync playback | 9 / 16-ch | 16 / 16-ch | 32 / 16-ch |
| Days on 2 × 24 TB (48 TB), every channel at 4 Mbps | ≈139 days | ≈69 days | ≈35 days |
| Days with 2 × 24 TB in RAID 1 (24 TB usable) | ≈69 days | ≈35 days | ≈17 days |
- Pick the NVR502-08B-P8-IQ for up to 8 cameras when you want recorder-side SIP/UMD on ordinary cameras; even with Smart on, each camera still has 20 Mbps.
- Pick the NVR502-16B-P16-IQ for 9–16 cameras on built-in PoE; with Smart on, keep each camera at 10 Mbps or less (4 MP H.265 at 4 Mbps fits easily).
- Pick the NVR502-32B-P16-IQ for 17–32 cameras, but if Smart will be on, plan 5 Mbps or less per camera or move the analysis into Uniview AI cameras (Smart by IPC) and leave Smart off.
Bandwidth per camera = incoming bandwidth ÷ channels (Smart off 320 Mbps, Smart on 160 Mbps). Retention = usable TB × 10^12 ÷ (cameras × bitrate ÷ 8 × 86400 s), assuming 4 Mbps per camera (typical 4 MP H.265, 24 h). RAID 1 usable space = one disk. Other values: official datasheet.
Full Specifications
Complete official specifications from the manufacturer's datasheet (technical values in English).
Decoding
| Decoding Format | Ultra 265, H.265, H.264 |
| Decoding Capability | 08B-P8-IQ · Smart Off: 2×16MP@30, 2×12MP@30, 4×4K@30, 8×4MP@30, 8×3MP@30, 8×1080P@30 | Smart On: 2×12MP@30, 2×4K@30, 6×4MP@30, 8×3MP@30, 8×1080P@3016B-P16-IQ · Smart Off: 2×16MP@30, 2×12MP@30, 4×4K@30, 8×4MP@30, 10×3MP@30, 16×1080P@30 | Smart On: 2×12MP@30, 2×4K@30, 6×4MP@30, 8×3MP@30, 12×1080P@30, 16×720P@3032B-P16-IQ · Smart Off: 2×16MP@30, 2×12MP@30, 4×4K@30, 8×4MP@30, 10×3MP@30, 16×1080P@30, 32×720P@30 | Smart On: 2×12MP@30, 2×4K@30, 6×4MP@30, 8×3MP@30, 12×1080P@30, 24×720P@30, 32×D1 |
| Decoding Capability Description | The resolution of each channel cannot exceed 8192 pixels in length and 4096 pixels in width. For VGA/HDMI independent output, the VGA live video is output by default; to output the highest resolution video from the HDMI port, clear the VGA video on the preview page. |
| Audio Compression | G.711A, G.711U |
Network
| Incoming Bandwidth | Smart Off: 320 Mbps | Smart On: 160 Mbps |
| Outgoing Bandwidth | 160 Mbps |
| Remote Users | 128 |
| Protocols | TCP/IP, P2P, NTP, DHCP, PPPoE, HTTP, HTTPS, DNS, DDNS, SNMP, SMTP, NFS, RTSP, IPv6, IPv4 |
| Browser (Plugin) | IE10, IE11, Chrome 45+, Edge 79+, Firefox 52+ |
Video/Audio Input
| IP Video Input | 08B-P8-IQ · 8-ch16B-P16-IQ · 16-ch32B-P16-IQ · 32-ch |
| RCA Audio Input | 1-ch |
| IP Speaker (Peripheral Input) | 16-ch |
| POS (Peripheral Input) | All channels |
Video/Audio Output
| HDMI Output | 4K (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 Output | 1920×1080/60 Hz, 1920×1080/50 Hz, 1600×1200/60 Hz, 1280×1024/60 Hz, 1280×720/60 Hz, 1024×768/60 Hz |
| RCA Audio Output | 1-ch |
| Liveview Display | 08B-P8-IQ · 1/4/6/8/916B-P16-IQ · 1/4/6/8/9/1632B-P16-IQ · 1/4/6/8/9/16/25/32 |
| Corridor Mode Screen | 08B-P8-IQ · 3/4/5/7/916B-P16-IQ · 3/4/5/7/9/10/12/1632B-P16-IQ · 3/4/5/7/9/10/12/16/32 |
| Two-way Audio | 1-ch, RCA (using the audio input and output) |
| Snapshot | FTP/Schedule/Event Snapshot; 4-ch snapshot (max. 8 MP (3840×2160) video resolution, with 1080P snapshot resolution) |
Recording
| Recording Resolution | 16 MP / 12 MP / 8 MP / 6 MP / 5 MP / 4 MP / 3 MP / 1080P / 960P / 720P / D1 / 2CIF / CIF |
| Synchronous Playback in Local | 16-ch |
Smart Function
| Smart by IPC | All channels (up to 8 images/s in total) Face Detection, Face Comparison, Vehicle Detection (LPR), Temperature Detection, SIP, UMD, Video Metadata, Traffic Monitoring |
| Smart by NVR | Face Detection, Face Comparison, Smart Intrusion Prevention (SIP), Ultra Motion Detection (UMD) |
| Smart by NVR Analyzer Mode | Single 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 Search | AcuSearch, AcuTrack, Face Snapshot Search, Face Comparison Search, Motor Vehicle Search, Non-Motor Vehicle Search, Human Body Search, General Search, People Counting Report, Heat Map |
| AcuSearch | All channels with UNV SIP/UMD Camera |
| AcuTrack | All channels with UNV SIP/UMD Camera |
| by NVR (Face Detection capacity) | Up to 8-ch with UNV Face Detection Camera, Up to 2-ch with normal camera (UNV and Third-part brand, 2-ch 2MP, 1-ch 4MP) |
| 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 with normal cameras | Up to 4-ch with normal camera (UNV and Third-part brand, 4-ch 2MP, 2-ch 4MP, 1-ch 4K) |
| UMD by NVR with normal cameras | Up to 8-ch with normal camera (UNV and Third-part brand, 8-ch 2MP, 4-ch 4MP, 2-ch 4K) |
| Capacity of Snapshot Records | 2 millions records for face snapshot, 2 millions records for vehicle snapshot, 3 millions records for SIP, 2 millions records for video Metadata |
Alarm
| General Alarm | 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, Array Damaged, Array Degraded |
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 | 2 SATA Interfaces |
| Capacity | Up 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 40°C) |
| Disk Group | Support |
| Redundant Storage | Support |
| Disk Array Type | RAID 1 |
External Interface
| Network Interface | 1 RJ45 10 M/100 M/1000 M self-adaptive Ethernet Interface |
| USB | Front panel: 1 × USB2.0, Rear panel: 1 × USB3.0 |
| RS485 | 1 |
| RS232 | N/A |
| Alarm In | 8-ch |
| Alarm Out | 2-ch |
| Power Supply | AC 100~240V |
| Power Switch | Support |
PoE
| PoE Interface | 08B-P8-IQ · 8 RJ45 10 M/100 M self-adaptive Ethernet Interface16B-P16-IQ · 16 RJ45 10 M/100 M self-adaptive Ethernet Interface32B-P16-IQ · 16 RJ45 10 M/100 M self-adaptive Ethernet Interface |
| Max Power | 08B-P8-IQ · Max 30 W for single port, Max 130 W in total16B-P16-IQ · Max 30 W for single port, Max 240 W in total32B-P16-IQ · Max 30 W for single port, Max 240 W in total |
| Supported Standard | IEEE 802.3at, IEEE 802.3af |
Working Environment
| Working Temperature | -10 °C to 50 °C (14 °F to 122 °F) |
| Working Humidity | ≤ 90% RH (non-condensing) |
| Power Consumption (without HDD) | ≤ 12 W |
Dimensions
| Weight (without HDD) | ≤ 2.7 Kg (6.0 lb) |
| Height | 1U |
| Dimensions | 380 mm × 322 mm × 53 mm (15.0" × 12.7" × 2.1") |
Certification
| Certification | CE; FCC; UL; RoHS; WEEE |
| CE | EN 55032, EN 61000-3-3, EN IEC 61000-3-2, EN 55035 |
| FCC | Part15 Subpart B |
Dimensions
Engineering drawing reproduced 1:1 from the official datasheet.

| Dimensions | 380 mm × 322 mm × 53 mm (15.0" × 12.7" × 2.1") |
| Weight (without HDD) | ≤ 2.7 Kg (6.0 lb) |
| Power supply | AC 100~240V |
| Consumption (without HDD) | ≤ 12 W |

Optional Mounting Accessories
Order together with the camera to save shipping.
PoE AI NVR FAQ — NVR502-B-P-IQ Series
Do the IQ models power the cameras too?
How many IP cameras can I connect?
What happens if a hard drive fails?
What AI functions are built into the recorder itself?
Can I find a person from a photo?
Can I view live video remotely?
What changes on the NVR502-32B-P16-IQ when I switch Smart on?
How many ordinary or third-party cameras can the NVR502-B-P-IQ analyse itself, and can it run several AI functions at once?
Does the NVR502-B-P-IQ read number plates by itself?
Can the NVR502-16B-P16-IQ show cash-register (POS) data and play announcements through IP speakers?
What is the difference between the NVR502-16B-P16-IQ and the NVR502-16B-P16?
How many face and vehicle snapshots does the NVR502-B-P-IQ keep?
Ordering questions — samples, shipping, payment, lead time and genuine stock — are answered once on our FAQ page.
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