NVR / Recorders › NVR502-08B-P8 / 16B-P16 / 32B-P16
Uniview (UNV)B-P Series · 2× SATA HDD · PoE
2-HDD PoE Network Video Recorder · B-P Series
NVR502-08B-P8 / 16B-P16 / 32B-P16
8 / 16 / 32-channel PoE network video recorder — built-in PoE ports power the cameras directly, dual SATA bays support RAID 1, Ultra 265 compression, and 4K HDMI output.
16MP · max recordingUltra 265 · low storage4K HDMI · independent VGA output2× SATA · up to 24 TB eachPoE · 8/16 ports built in38 languages · local interfaceONVIF · certified
Choose your size — three models on this page
Rule of thumb: match channels to your camera count, then check PoE — the 08B-P8 and 16B-P16 power every camera from the built-in ports, but the 32B-P16 has only 16 PoE ports for 32 channels, so half the cameras need external power or a separate switch. Highlighted rows in the spec table below show every other difference between the three.
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The Uniview NVR502-B-P Series is a 2-HDD PoE network video recorder offered in three sizes: NVR502-08B-P8 (8-ch, 8 PoE ports), NVR502-16B-P16 (16-ch, 16 PoE ports) and NVR502-32B-P16 (32-ch, 16 PoE ports). All three record cameras up to 16MP with Ultra 265 / H.265 / H.264 compression, output independently over 4K HDMI and VGA, and support Face Detection, Face Comparison, Vehicle Detection (LPR) and other Smart-by-IPC analytics. Two SATA bays take hard disks up to 24 TB each with RAID 1 and redundant storage support; 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.
Medium-to-large sites8/16/32-ch models scale from a small office to a full warehouse or campus without changing recorder families.
Power cameras from the recorderBuilt-in PoE ports (8 on the 08B-P8, 16 on the 16B-P16/32B-P16) power most cameras directly — no separate PoE switch needed for a same-size install.
Sites that can't lose footageTwo SATA bays support RAID 1 and redundant storage — if one drive fails, recording continues on the mirror.
Investigations & analyticsFace Detection, Face Comparison, Vehicle Detection (LPR), People Counting and Heat Map turn hours of footage into a short list of matches.
Sites wired for alarms8-ch alarm input and 2-ch alarm output connect directly to sirens, door sensors and panic buttons — no extra alarm hub needed.
Local-language interface38 GUI languages including Spanish (Latin America), Portuguese (Brazil), French, Arabic and more — your customer operates it in their own language.
Not the right pick if you need…
- Full 32-ch PoE power — the 32B-P16 has only 16 built-in PoE ports for 32 channels; the other 16 cameras need external power or a separate switch
- Simultaneous full-resolution HDMI + VGA — the two outputs are independent; VGA shows by default and must be cleared on the preview page to get the highest-resolution HDMI image
- 32-channel synchronous local playback — local playback tops out at 16-ch even on the 32B-P16 (all 32 channels are still viewable live and remotely)
- RS-232 serial control — this series has RS-485 only, no RS-232 port
- Multi-channel or built-in audio — audio is 1-ch RCA input and 1-ch RCA output only, no embedded mic/speaker array
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Key Features
Complete list from the official datasheet.
Support Ultra 265 / H.265 / H.264 video formats
8 / 16 / 32-channel input
Plug & Play with 8/16 independent PoE network interfaces
Support 1-ch HDMI, 1-ch VGA, HDMI up to 4K (3840×2160) resolution
VGA and HDMI independent output
Up to 16 Megapixels resolution recording
ANR technology to enhance the storage reliability when the network is disconnected
Support cloud upgrade
Power the cameras. Protect the footage.
The two hardware-level capabilities that set the B-P series apart: built-in PoE power and RAID 1 storage redundancy.
PLUG & PLAY POE
One box powers the cameras too
Built-in PoE ports (8 on the 08B-P8, 16 on the 16B-P16/32B-P16) deliver up to 30W per port and up to 240W total — most installs need no separate PoE switch.
DUAL SATA · RAID 1
Built-in protection against drive failure
Two SATA bays support Disk Group and Redundant Storage with RAID 1 mirroring, up to 24 TB per drive — if one HDD fails, recording keeps running on the other.
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.
NVR502-08B-P8PoE ×8 · live view up to 9 · sync playback 8-ch
8cameras
NVR502-16B-P16PoE ×16 · live view up to 16 · sync playback 16-ch
16cameras
NVR502-32B-P16PoE ×16 of 32 · live view up to 32 · sync playback 16-ch
32cameras
Who uses it, where it goes and how to install it
Written for the NVR502-08B-P8, NVR502-16B-P16 and NVR502-32B-P16 from the official datasheet: 8, 16 or 32 channels, 8 or 16 built-in PoE ports (130 W or 240 W), 320 Mbps incoming, 2 SATA bays up to 24 TB each with RAID 1, gigabit LAN, 8 alarm inputs / 2 outputs, AC 100–240 V.
Which size suits which installation
- NVR502-08B-P8: 8 demanding cameras — Shops, clinics and offices that want 4K or PoE+ cameras on every port: 130 W for 8 ports (about 16 W each) and 40 Mbps of input per camera, plus a second disk for mirroring that the 1-bay NVR501 series lacks.
- NVR502-16B-P16: 9–16 cameras in one box — Warehouses, hotels, schools and supermarkets: every camera on its own PoE port from a 240 W budget, 20 Mbps each, 16-window live view and 16-channel synchronous playback.
- NVR502-32B-P16: 17–32 cameras with an extra switch — Factories, campuses and car parks: 16 cameras run from the built-in ports and the rest connect through a PoE switch on the gigabit LAN. Live view goes up to 32 windows, but local synchronous playback stops at 16 channels.
- Sites with alarm panels and PTZ control — Banks, pharmacies and petrol stations can wire door contacts and panic buttons to the 8 alarm inputs, drive a siren or strobe from the 2 alarm outputs, and use the RS485 port — all three sizes have the same terminals.
Where and how to install the recorder
- 1U rack or a solid shelf — The case is 380 × 322 × 53 mm and about 2.6 kg without disks; mount it with the RM-1U-380 kit in a 19-inch cabinet or lay it flat on a shelf. Leave space at the sides and back for air, and keep the room at 40 °C or less if you fit very large disks (datasheet limit).
- Mains power and UPS sizing — The power supply is built in (AC 100–240 V, with a power switch), so it works on any mains voltage. For the UPS add the recorder (≤ 20 W without disks), the two disks and the real PoE load, which can reach 130 W on the 08B-P8 and 240 W on the 16B-P16 / 32B-P16, plus any external PoE switch.
- Decide RAID 1 before recording starts — Fit two identical surveillance-grade drives. Either use both for capacity (up to 48 TB) or mirror them in RAID 1 (capacity of one disk, footage survives a disk failure). Building an array formats the disks, so choose at commissioning, not after months of recording.
- PoE ports, extra switch and gigabit LAN — The PoE ports are 10/100M, so each camera run is Cat5e/Cat6 copper up to 100 m; add surge protection on outdoor runs. On the 32B-P16, connect cameras 17–32 through a PoE switch on the 10/100/1000M LAN port, which also carries remote viewing (up to 160 Mbps outgoing).
- Alarm terminals and RS485 — Bring sensor and siren wires to the rear terminals (8 alarm inputs, 2 alarm outputs) in a tidy loom, labelled per zone. A siren or strobe that draws real current should be switched through an external relay with its own supply, not powered directly from the NVR output.
- Two monitors, configured correctly — HDMI (up to 4K) and VGA are independent outputs, so a guard room and a manager's office can show different layouts. By default VGA carries the live video; to get the highest resolution on HDMI, clear the VGA video on the preview page.
Planning table: channels, PoE, bandwidth, disk and retention
All three share 320 Mbps of input and two disk bays, so the per-camera bandwidth and the days of recording fall as channels rise. The 16B-P16 and 32B-P16 have the same 16 PoE ports and 240 W; the 32B-P16 only adds channels and layouts.
| NVR502-08B-P8 | NVR502-16B-P16 | NVR502-32B-P16 | |
|---|---|---|---|
| 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 |
| Average PoE per port, all ports used | ≈16 W | 15 W | 15 W |
| Incoming bandwidth per camera (320 Mbps shared) | 40 Mbps | 20 Mbps | 10 Mbps |
| Full-quality decoding (H.265) | 4 × 4K@30, 8 × 4MP@30 | 4 × 4K@30, 16 × 1080P@30 | 4 × 4K@30, 32 × 960P@25 |
| Live view max / local synchronous playback | 9 / 8-ch | 16 / 16-ch | 32 / 16-ch |
| Days on 2 × 8 TB (16 TB), every channel at 4 Mbps | ≈46 days | ≈23 days | ≈11.6 days |
| 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 when 8 cameras is enough but they are 4K or PoE+: 130 W gives about 16 W per port and each camera has 40 Mbps of input.
- Pick the NVR502-16B-P16 for up to 16 cameras all powered from the recorder; with RAID 1 on 2 × 24 TB it still keeps about 35 days at 4 Mbps each.
- Pick the NVR502-32B-P16 only with a PoE switch budgeted for cameras 17–32, and lower the bitrate or add disk: 32 cameras at 4 Mbps fill 48 TB in about 35 days.
Retention = usable TB × 10^12 ÷ (cameras × bitrate ÷ 8 × 86400 s), assuming 4 Mbps per camera (typical 4 MP H.265, 24 h recording; your scenes change it). RAID 1 mirrors the two disks, so usable space equals one disk. Average PoE = budget ÷ ports. Other values: official datasheet.
Full Specifications
Complete official specifications from the manufacturer's datasheet (technical values in English).
Highlighted rows differ between the three models:NVR502-08B-P8 · 8-chNVR502-16B-P16 · 16-chNVR502-32B-P16 · 32-ch
Decoding
| Decoding Format | Ultra 265, H.265, H.264 |
| Decoding Capability | 08B-P8 · Ultra 265/H.265: 2×16MP@30, 2×12MP@30, 4×4K@30, 6×5MP@30, 8×4MP@30; H.264: 2×16MP(4800×2688)@30, 2×12MP@30, 2×4K@30, 4×5MP@30, 6×4MP@30, 8×3MP@3016B-P16 · Ultra 265/H.265: 2×16MP@30, 2×12MP@30, 4×4K@30, 6×5MP@30, 8×4MP@30, 10×3MP@30, 16×1080P@30; H.264: 2×16MP(4800×2688)@30, 2×12MP@30, 2×4K@30, 4×5MP@30, 6×4MP@30, 8×3MP@30, 14×1080P@30, 16×720P@3032B-P16 · Ultra 265/H.265: 2×16MP@30, 2×12MP@30, 4×4K@30, 6×5MP@30, 8×4MP@30, 10×3MP@30, 16×1080P@30, 32×960P@25; H.264: 2×16MP(4800×2688)@30, 2×12MP@30, 2×4K@30, 4×5MP@30, 6×4MP@30, 8×3MP@30, 14×1080P@30, 30×720P@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 | 320 Mbps |
| Outgoing Bandwidth | 160 Mbps |
| Remote Users | 128 |
| Protocols | TCP/IP, P2P, UPnP, NTP, DHCP, PPPoE, HTTP, HTTPS, DNS, DDNS, SNMP, SMTP, RTSP, IPv6, IPv4 |
| Browser (Plugin) | IE10, IE11, Chrome 45+, Edge 79+, Firefox 52+ |
Video/Audio Input
| IP Video Input | 08B-P8 · 8-ch16B-P16 · 16-ch32B-P16 · 32-ch |
| RCA Audio Input | 1-ch |
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 · 1/4/6/8/916B-P16 · 1/4/6/8/9/1632B-P16 · 1/4/6/8/9/16/25/32 |
| Corridor Mode Screen | 08B-P8 · 3/4/5/7/916B-P16 · 3/4/5/7/9/10/12/1632B-P16 · 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. D1 (720×576) video resolution, with D1 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 | 08B-P8 · 8-ch16B-P16 · 16-ch32B-P16 · 16-ch |
Smart
| 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 |
| VCA Search | Face Snapshot Search, Face Comparison Search, Motor Vehicle Search, Non-Motor Vehicle Search, Human Body Search, General Search, People Counting Report, Heat Map |
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 |
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 × USB 2.0, Rear panel: 1 × USB 3.0 |
| RS485 | 1 |
| RS232 | N/A |
| Alarm In | 8-ch |
| Alarm Out | 2-ch |
| Power Supply | AC 100 to 240 V |
| Power Switch | Support |
PoE
| PoE Interface | 08B-P8 · 8 RJ45 10 M/100 M self-adaptive Ethernet Interface16B-P16 · 16 RJ45 10 M/100 M self-adaptive Ethernet Interface32B-P16 · 16 RJ45 10 M/100 M self-adaptive Ethernet Interface |
| Max Power | 08B-P8 · Max 30 W for single port, max 130 W in total16B-P16 · Max 30 W for single port, max 240 W in total32B-P16 · 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 55 °C (14 °F to 131 °F) |
| Working Humidity | ≤ 90% RH (non-condensing) |
| Power Consumption (without HDD) | ≤ 20 W |
Dimensions
| Weight (without HDD) | ≤ 2.6 kg (5.73 lb) |
| 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.
unit: mm (in.)
| Dimensions | 380 × 322 × 53 mm (15.0" × 12.7" × 2.1") |
| Weight (without HDD) | ≤ 2.6 kg (5.73 lb) |
| Power supply | AC 100–240 V |
| Consumption (without HDD) | ≤ 20 W |
Rear panel — all interfaces
Optional Mounting Accessories
Order together with the camera to save shipping.
RM-1U-3802 HDD 1U NVR rack mount tray
8/16/32-Channel PoE NVR FAQ — NVR502-B-P Series
How many cameras can the NVR502-16B-P16 power directly?
The NVR502-08B-P8 has 8 built-in PoE ports (130 W total); the 16B-P16 and 32B-P16 have 16 ports, with a 240 W budget on the 16B-P16. Each PoE port delivers up to 30 W (IEEE 802.3at/af), so typical 4–12 W IP cameras plug straight into the recorder — power and video over one cable, no separate PoE switch needed.
How many IP cameras can I connect?
The NVR502-08B-P8 records 8 IP cameras, the 16B-P16 16 and the 32B-P16 32, up to 16 MP per channel. Incoming bandwidth is 320 Mbps, so size camera bitrates to stay inside that figure, and pick the channel count that leaves room to add cameras as the site grows.
What happens if a hard drive fails?
The two SATA bays (up to 24 TB each) support Disk Group and Redundant Storage with RAID 1 mirroring, so both disks hold an identical copy of critical footage. A single drive failure then doesn't stop recording or lose the protected footage — worth enabling on sites where video is evidence, such as shops, warehouses and residential compounds.
Can I connect alarm sensors and sirens?
Yes — it has 8 alarm inputs and 2 alarm outputs plus an RS485 port, so PIR sensors, door contacts or sirens wire directly to the recorder and can trigger recording, snapshots or notifications alongside the video events.
Does it support face detection and smart search?
Yes — with UNV smart cameras, every channel can report Face Detection, Face Comparison, Vehicle Detection (LPR) and Temperature Detection events (up to 8 images/s total). The NVR indexes these events for VCA Search — face snapshot/comparison, vehicle and human-body search — so you jump straight to the right clip instead of scrubbing hours of video.
Can I view live video remotely?
Yes — up to 128 remote users can connect. The recorder supports P2P, DDNS, HTTP/HTTPS and RTSP and works in a browser (IE10/11, Chrome 45+, Edge 79+, Firefox 52+), so an integrator can check several client sites from one office. Outgoing bandwidth for remote streams is 160 Mbps.
With two 8 TB disks in RAID 1 on the NVR502-16B-P16, how much space do I get?
8 TB: RAID 1 writes the same footage to both disks, so you get the capacity of one disk in exchange for surviving a disk failure. At 4 Mbps per camera, 16 cameras fill 8 TB in about 11.6 days; without RAID the same two disks give 16 TB and about 23 days. If you need RAID 1 and long retention, buy two larger disks (up to 24 TB each).
How do I power cameras 17 to 32 on the NVR502-32B-P16?
Through a separate PoE switch connected to the recorder's 10/100/1000M LAN port; the 32B-P16 has only 16 PoE ports (240 W) for its 32 channels. Size that switch's PoE budget for the extra cameras, keep it on the same network as the NVR and on the same UPS. The total of all 32 streams must stay within 320 Mbps, which is 10 Mbps per camera on average.
Can the NVR502-08B-P8 power eight 30 W PoE+ cameras at the same time?
No. Each port can give up to 30 W, but the total is 130 W, about 16 W per port when all 8 are used; eight cameras at 30 W would need 240 W. Typical fixed cameras draw well under that, so check each camera's maximum power: up to 4 cameras at 30 W fit (120 W) with only a little left for the rest. For heavy loads such as PTZs with heaters, use an external PoE switch or the 16B-P16 with 240 W.
Why does my 4K monitor on HDMI not show full resolution on the NVR502-B-P?
Because HDMI and VGA are independent outputs and the live video goes to VGA by default. The datasheet says: to output the highest-resolution video from HDMI, clear the VGA video on the preview page. Then set the HDMI output to 4K (3840 × 2160)/30 Hz in the display settings.
How many 4K cameras can the NVR502-16B-P16 and NVR502-32B-P16 record?
Recording is limited by the 320 Mbps input, not the channel count: 16 × 4K at 8 Mbps each is 128 Mbps and 32 × 4K at 8 Mbps is 256 Mbps, both within the limit (8 Mbps is our assumed H.265 4K bitrate). Viewing is the tighter limit: full-quality decoding is 4 × 4K@30, so multi-window live view uses the cameras' sub-streams. Local synchronous playback is 16 channels on both models.
Does the NVR502-B-P work with ONVIF cameras from other brands?
ONVIF is not in the official datasheet's protocol list (RTSP is), so send us your camera models to confirm before you order. Third-party cameras are added manually (ONVIF protocol, IP, user name, password); on a PoE port, switch that channel from plug-and-play to manual first. Face Comparison, LPR and the other Smart by IPC searches need cameras that produce those events, so treat a third-party camera as video recording only.
Ordering questions — samples, shipping, payment, lead time and genuine stock — are answered once on our FAQ page.
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