




NVR504-16 / 32B-P16-IQ
16 / 32-channel network video recorder — 16 built-in PoE ports (30 W/port, 150 W total), four SATA bays with RAID 1/5, Ultra 265 compression, records cameras up to 16MP, with onboard Smart by NVR Face/Vehicle Detection and AcuSearch/AcuTrack AI search.
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 NVR504-B-P-IQ Series is a 16-port PoE, 4-HDD network video recorder offered in two sizes: NVR504-16B-P16-IQ (16-ch) and NVR504-32B-P16-IQ (32-ch), with 16 built-in PoE ports on both models (30 W per port, 150 W total budget, IEEE 802.3at/af). Both record cameras up to 16MP with Ultra 265 / H.265 / H.264 compression, output independently over HDMI (up to 4K) and VGA, and support RAID 1/5 disk redundancy across four SATA bays each up to 24 TB. Onboard Smart by NVR processing (Face Detection, Face Comparison, Smart Intrusion Prevention, Ultra Motion Detection) works with AcuSearch, AcuTrack and Face/Vehicle search, 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.
- Powering all 32 cameras via built-in PoE on the 32B-P16-IQ — this series has 16 PoE ports regardless of model; channels 17–32 on the 32-ch unit need a separate switch or injector
- A second/redundant network uplink — only one 10/100/1000M RJ45 network interface is provided (separate from the 16 PoE camera ports)
- RS232 serial connection — RS232 is listed N/A on this series (RS485 is provided, e.g. for PTZ control)
- A fifth hard disk or more — this series tops out at 4 SATA bays (up to 96 TB total with four 24 TB drives)
- Redundant/dual power input — it runs on a single AC 100–240 V power supply, no built-in PSU redundancy
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Key Features
Complete list from the official datasheet.
16 ports of PoE. AI finds the moment.
Two real capabilities that define this series: built-in 16-port PoE and onboard Smart by NVR AI search.
Cameras plug in and power up
16 independent PoE ports deliver up to 30 W per port (150 W total budget, IEEE 802.3at/af) — cameras get power and data over one cable, and most 16-camera installs skip a separate PoE switch entirely.
Onboard AI, not just camera-side
Smart by NVR runs Face Detection, Face Comparison, Smart Intrusion Prevention and Ultra Motion Detection on the recorder itself (up to 8-ch with a Uniview Face Detection camera, or 2-ch with an ordinary camera), feeding AcuSearch, AcuTrack, Face Snapshot Search and a 25,000-picture Vehicle Picture Library.
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 size it
Written for the NVR504-16B-P16-IQ / 32B-P16-IQ from the official datasheet: 16 or 32 IP channels, 16 built-in PoE ports (30 W per port, 150 W in total), recorder-side face, SIP and UMD analysis, 320 Mbps incoming (160 Mbps with Smart On), 4 SATA bays up to 24 TB each with RAID 1/5.
Which size suits which installation
- NVR504-16B-P16-IQ: supermarkets and shops in one cabinet — 16 cameras plug straight into the recorder, POS input works on all channels and up to 16 IP speakers can be added, so cash desks, announcements and video live in one box with no PoE switch.
- NVR504-32B-P16-IQ: 16 cameras on PoE plus 16 more over the network — The 16 PoE ports cover the main building; channels 17–32 arrive through the gigabit network port from an external PoE switch. With Smart On, plan about 5 Mbps per camera across all 32.
- Upgrades that keep existing ordinary cameras — The recorder can add UMD to up to 8 ordinary 2 MP cameras (4 × 4 MP), including third-party models, which filters motion alerts down to people and vehicles without replacing the cameras.
- Sites that need protected evidence — Four bays up to 24 TB each with RAID 5, plus Array Degraded and Array Damaged alerts, keep recordings through a single disk failure; 2 million face and 2 million vehicle snapshot records stay searchable.
Where and how to install the recorder
- 1.5U case with room to breathe — The case is 1.5U, 400 × 368 × 74 mm, narrower than a 19-inch rack, so it needs a rack tray or shelf in a cabinet (ask us for the matching kit). Leave space above it: up to 150 W of PoE power becomes heat inside the box.
- Keep the room cool: 50 °C limit, 40 °C for big disks — This IQ version is rated -10 °C to 50 °C (the non-IQ NVR504-B-P goes to 55 °C), and 24 TB disks need an ambient temperature of no more than 40 °C. With PoE loaded and four disks spinning, an air-conditioned room is the safe choice.
- Mains power and a UPS sized for the cameras too — The supply is internal, AC 100–240 V. The recorder draws no more than 12 W without disks, but the cameras on its ports can add up to 150 W, so size the UPS for recorder + disks + PoE load or the cameras go dark in an outage.
- Camera runs within 100 m — Each PoE port (10/100 Mbps) feeds one camera over up to 100 m of solid-copper Cat5e or Cat6. Put outdoor joints in a junction box, and move cameras beyond 100 m to an external switch or extender.
- One uplink, four disks, alerts on — Use the single gigabit RJ45 port for the router and any external camera switch. Fit four identical surveillance disks, create RAID 5 or RAID 1 before recording (it erases the disks), and send the Array Degraded alert to e-mail.
Planning table: channels, bandwidth, disks and retention
Both sizes share 16 PoE ports, 150 W, four bays and the same recorder-side AI. The 32B-P16-IQ records twice the channels but powers the same 16 cameras, and with Smart On its 160 Mbps input leaves about 5 Mbps per camera across 32. The AI channel counts for ordinary cameras do not grow with the model size.
| NVR504-16B-P16-IQ · 16-ch | NVR504-32B-P16-IQ · 32-ch | |
|---|---|---|
| IP camera channels | 16 | 32 |
| PoE ports / total PoE budget | 16 / 150 W | 16 / 150 W |
| Max per port / average per port with 16 in use | 30 W / 9.3 W | 30 W / 9.3 W |
| Channels that need an external PoE switch | 0 | 16 |
| Incoming bandwidth (Smart Off / Smart On) | 320 / 160 Mbps | 320 / 160 Mbps |
| Average bitrate per camera with every channel in use (Smart On) | 10 Mbps | 5 Mbps |
| Recorder-side AI on ordinary 4 MP cameras: face / SIP / UMD | 1 / 2 / 4 ch | 1 / 2 / 4 ch |
| Face analysis with Uniview face detection cameras | 8 ch | 8 ch |
| HDD bays × max capacity per disk | 4 × 24 TB | 4 × 24 TB |
| Usable storage: no RAID / RAID 5 / RAID 1 | 96 / 72 / 48 TB | 96 / 72 / 48 TB |
| Retention, every channel at 4 Mbps, 72 TB in RAID 5 | 104 days | 52 days |
| Live view split, largest layout | 16 | 32 |
- Pick the NVR504-16B-P16-IQ when all 16 cameras are within 100 m and you want AI without a separate switch: with Smart On each camera still averages 10 Mbps.
- Pick the NVR504-32B-P16-IQ when up to 16 more cameras sit on a remote PoE switch; keep them at 2–4 MP if Smart is on (about 5 Mbps each).
- If cameras are spread out and you already have PoE switches, the NVR504-16B-IQ / 32B-IQ has the same AI and four bays without built-in PoE.
Assumptions: 4 Mbps per camera for storage (typical continuous H.265 for 4 MP). Days = TB × 10^12 ÷ (cameras × bitrate ÷ 8 × 86,400), rounded down; RAID 5 on four equal disks keeps three disks of capacity. AI channel counts are the datasheet's 4 MP figures for ordinary (Uniview or third-party) cameras; with 2 MP cameras they are 2 / 4 / 8.
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 | 16B-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, 802.1x, IPv6, IPv4 |
| Browser (Plugin) | IE10, IE11, Chrome 45+, Edge 79+, Firefox 52+ |
Video/Audio Input
| IP Video Input | 16B-P16-IQ · 16-ch32B-P16-IQ · 32-ch |
| RCA Audio Input | 1-ch |
| Peripheral Input — Ip Speaker | 16-ch |
| Peripheral Input — POS | 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 | 16B-P16-IQ · 1/4/6/8/9/1632B-P16-IQ · 1/4/6/8/9/16/25/32 |
| Corridor Mode Screen | 16B-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 active simultaneously, only one mode can active 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 | 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 | 4 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, 5 |
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 | 16-ch |
| Alarm Out | 4-ch |
| Power Supply | AC 100~240 V |
| Power Switch | Support |
PoE
| PoE Interface | 16 RJ45 10 M/100 M self-adaptive Ethernet Interface |
| Max Power | Max 30 W for single port, Max 150 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) | ≤ 4 Kg (8.8 lb) |
| Height | 1.5U |
| Dimensions | 400 mm × 368 mm × 74 mm (15.7" × 14.5" × 2.9") |
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 | 400 mm × 368 mm × 74 mm (15.7" × 14.5" × 2.9") |
| Height | 1.5U |
| Weight (without HDD) | ≤ 4 kg (8.8 lb) |
| Power supply | AC 100~240 V |
| Consumption (without HDD) | ≤ 12 W (PoE budget: max 150 W separately) |

16/32-Channel PoE NVR FAQ — NVR504-B-P16-IQ
How many IP cameras can I plug straight into this PoE NVR?
What AI functions does the IQ version actually run?
How much recording storage can it hold?
Can my client watch the cameras remotely from another city?
What monitor can I connect for live view?
Is the incoming bandwidth enough for 32 cameras?
If I plug ordinary or third-party cameras into the NVR504-16B-P16-IQ, which AI still works?
The NVR504-B-P-IQ runs one analyzer mode at a time. Which one should I choose?
Is 150 W enough for 16 full-colour or warm-light cameras on the NVR504-16B-P16-IQ?
NVR504-16B-P16-IQ or NVR504-16B-P16: is the IQ version worth it?
Can the NVR504-B-P-IQ alert me when a known face appears at the entrance?
Ordering questions — samples, shipping, payment, lead time and genuine stock — are answered once on our FAQ page.
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