Recording · 32 channel
32-Channel NVR — NVR32-2-2
Thirty-two channels across two drive bays, for a two-floor office, a mid-size site or a building where the retention policy is longer than a single bay comfortably covers.
- 32 channels
- 2 bays up to 18 TB each
- 4K 3840 × 2160 HDMI
- AI face and plate detection
The size that solves the retention problem
Most projects move to a 32-channel recorder not because they have thirty-two cameras but because they need a second drive bay. Two bays at 18 TB each give 36 TB of raw capacity, which covers thirty-two channels for thirty days at full settings and leaves room for the drive to fill unevenly.
That makes it the natural choice for a two-floor office, a school, a mid-size warehouse or any site where the client has been told the footage must be kept for a month. If you are choosing between this and the 16-channel model on retention grounds, the extra bay is the whole argument.
Planning across two bays
Thirty-two channels at 5 MP with H.265+ over thirty days is roughly 8 to 14 TB, so two 8 TB drives cover it and two 12 TB drives give real headroom. Spread the recording across both drives rather than filling one — the usual configuration writes to both, so a single drive failure does not lose everything recorded after a given moment.
For sites where footage matters legally, consider recording the critical channels to one drive and the perimeter to the other, so a drive failure leaves the evidence set intact.
Where the detection capability pays off
The recorder supports face, licence plate, humanoid, vehicle and high-altitude parabolic detection, with motion, IO alarm and AI-triggered recording as linkages. On a thirty-two channel site, enable it selectively: the entrance, the vehicle gate and the till line. Running detection on every channel is a processing load that rarely returns anything useful.
Detection quality depends on the camera position as much as the algorithm. A plate detection channel needs the plate large in frame and lit consistently, which is an installation decision rather than a setting.
Model
NVR32-2-2
standard32 channels, 2 drive bays up to 18 TB each, 4K HDMI output.
- Channels
- 32
- Drive bays
- 2, up to 18 TB each
- Raw capacity
- Up to 36 TB
Two SATA bays. Confirm the retention period before choosing drive sizes.
Technical specifications
NVR32-2-2 technical specifications
| System Structure | Embedded LINUX, pure hardware decoding, Watchdog, HDMI HD display |
|---|---|
| Video Input | 32-channel HD IPC access; supports dual-stream, auto-search, and auto-add |
| Access Bandwidth | 180Mbps |
| Video Decoding | H.265+ / H.265 / H.264 |
| Local Playback | Supports 4-ch (4K @ 30fps) local playback |
| HDMI Output | Supports 4K 3840×2160,2560×1440,1920×1080,1440×900,1366×768,1280×1024,1280×800,1024×768 |
| VGA Output | 1920×1080,1440×900,1366×768,1280×1024,1280×800,1024×768 |
| Layout Mode | 1 / 2 / 4 / 6 / 8 / 9 / 10 / 16 / 24 / 25 / 36 screen layouts |
| Recording Res. | 4K / 5MP / 4MP / 3MP / 1080P / 960P / 720P |
| Audio Interface | 1* 3.5mm 4-pin jack (In/Out); 1* 3.5mm 3-pin jack (In) (1-channel input: 3.3V / 1kΩ impedance; 2-channel output: 2.8Vp-p / 32Ω min impedance; 1-channel GND); Standard G.711 codec; supports audio and video recording; supports HDMI audio output; supports audio and video preview and playback via the Seetong client. |
| Audio Processing | G.711 standard; supports AV sync, dual-way audio, and Seetong remote audio |
| HDD Interface | 2 SATA Interfaces*; Supports up to 18TB per disk |
| External Storage | 1 eSATA interface*; Support for external USB HDDs and U-disks for backup |
| AI Smart Detection | Supports: Face, License Plate, Humanoid, Vehicle, High-altitude Parabolic |
| Alarm Linkage | Supports Motion Detection, IO Alarm, and AI-triggered recording |
| User Management | Supports up to 38 local users |
| Network Interface | 2 RJ45 LAN1 RJ45 Ethernet interface, supports 10/100/1000M auto-negotiation; LAN2 RJ45 Ethernet interface, supports 10/100M auto-negotiation; |
| Protocols | TCP/IP, IPv4, DHCP, NTP, RTSP, P2P, SMTP, GB28181, ONVIF |
| USB Interface | 1* USB 3.0 (Rear); 1* USB 2.0 (Front) Supports mouse input, USB upgrades, and data import/export. |
| Software | Seetong Cloud (iOS, Android, Windows Client) Supports preview/recording/forwarding/remote service, and alarm linkage. |
| Power Supply | AC 100～240V (50/60Hz) with Adapter DC12V 4A |
| Power Consumption | ＜ 3W (Excluding Hard Disks) |
| Reliability | Lightning protection and anti-static design |
| Dimensions | 330 * 229 * 50mm (W * D * H) |
| Weight | Approx. 1200g (Net weight without HDD) |
| Environment | Temp: -10℃ ～ ＋55℃; Humidity: 10% ～ 90% |
Specifications are taken from the manufacturer data sheet for the model listed. Where a figure depends on the configuration you order, we confirm it in writing on the quotation rather than leaving it implied.
Frequently asked questions
Two 8 TB drives or one 16 TB drive?
Two drives, for almost every project. Two bays give you redundancy against a single drive failure, let the recorder distribute recording across both, and make replacement cheaper. A single very large drive is one failure away from losing everything recorded since it was installed, which is not a good position for building footage.
How long will 32 channels record?
With two 8 TB drives you have 16 TB raw, which covers thirty-two 5 MP channels for roughly thirty days at moderate settings. Push every channel to full frame rate and high bitrate and the same capacity gives you fifteen to twenty days. Decide which channels genuinely need full rate.
Can it drive a video wall directly?
It can drive a local monitor over 4K HDMI with a sixteen-way split, which is enough for a security office. A full video wall with multiple panels and spliced layouts needs the video wall controller and decoder platform rather than a recorder output.
Is this model available with PoE ports?
No. The recorder records over the network; power comes from the PoE switches. That separation is deliberate — it lets you place the switch in the floor communications room where the cable runs are short, and the recorder where the operator sits.
What bandwidth does 32 channels need?
Thirty-two 5 MP channels at typical settings fit inside a gigabit network, but the uplink back to the recorder is the link to watch. If the switches are cascaded, add up the streams on the shared link rather than assuming per-camera rates add up harmlessly. Where the aggregate approaches a gigabit, use SFP fibre for the core link.
Can I start with 16 channels and expand?
Licensing on this platform is by chassis rather than per channel, so the practical route is to buy the chassis that matches your five-year camera count and fill the channels as cameras are added. Buying a 16-channel recorder and replacing it later costs more than buying the 32-channel model once.
Plan Your CCTV or Video Wall Project
Send us the building type, floor count and camera estimate — we will come back with a system layout, a bill of materials and a price.