




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.
Sample quantities are welcome — testing one or two units first is the normal way to start.
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.
Plain-language guide for buyers and installers — based only on what this recorder actually does.
For corporate buyers: we support submitting the purchase order to Uniview under your company's real name — your company appears on the official order, so the origin of the goods can be verified directly with the manufacturer. Just provide your company name and pay by corporate bank transfer. Models carrying the anti-counterfeit label can also be self-verified on Uniview's official Anti-Counterfeiting Query page — enter the unit's SN plus the scratch-off code.
For small and mid-size orders, we deliver directly to your designated forwarder's warehouse in China (EXW / FOB Guangzhou). From hand-over onward, international shipping and destination-side arrangements are handled by your forwarder — the way you already work.
Complete list from the official datasheet.
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.
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.
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.
Bars show camera capacity per model. Click the model buttons above to switch — the spec table highlights every other difference.
Complete official specifications from the manufacturer's datasheet (technical values in English).
| 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 |
| 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+ |
| 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 |
| 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 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 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 |
| 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 | 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 |
| 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 |
| 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 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 Temperature | -10 °C to 50 °C (14 °F to 122 °F) |
| Working Humidity | ≤ 90% RH (non-condensing) |
| Power Consumption (without HDD) | ≤ 12 W |
| 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 | CE; FCC; UL; RoHS; WEEE |
| CE | EN 55032, EN 61000-3-3, EN IEC 61000-3-2, EN 55035 |
| FCC | Part15 Subpart B |
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 |

Order together with the camera to save shipping.



