NVR524-128 / 256E
128 / 256-channel network video recorder — 24 hot-swap SATA bays with RAID 0/1/5/6/10/50/60 and N+1 hot spare, Ultra 265 compression, independent dual HDMI/VGA output (HDMI1 up to 8K), records cameras up to 32MP, with 640 Mbps incoming bandwidth and 16 alarm-in / 10 alarm-out terminals.
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 (typically FOB Shenzhen), 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 →Sample quantities are welcome — testing one or two units first is the normal way to start.
The Uniview NVR524-E Series is a 24-bay hot-swap network video recorder offered in two channel counts: NVR524-128E (128-ch) and NVR524-256E (256-ch). Both record cameras up to 32MP with Ultra 265 / H.265 / H.264 compression, output independently over dual HDMI (HDMI1 up to 8K) and dual VGA, and support RAID 0/1/5/6/10/50/60 with N+1 hot spare across twenty-four hot-swappable SATA bays each up to 24 TB. The 4U chassis carries 640 Mbps incoming/outgoing bandwidth, 16 alarm inputs, 10 alarm outputs, and a local interface 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.
- PoE ports — cameras need a separate PoE switch (this recorder has no built-in PoE ports)
- Recorder-side AI on ordinary or third-party cameras — this series has no "Smart by NVR" processing; face/vehicle detection runs on Uniview smart IPC cameras upstream, the recorder only indexes and searches the results
- Desktop or shelf placement — this is a 4U rack chassis (485 × 539 × 175 mm, ≤10 kg without HDDs) meant for a server rack or cabinet, not a desk
- Redundant/dual power input — the datasheet lists a single AC 100–240 V supply, with no second PSU described
- A small site with a handful of cameras — 128/256 channels across 24 bays is sized for large enterprise or city-level deployments, not a single small shop
Worried about counterfeits? Order under your own company name.
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.
Using your own freight forwarder? No problem.
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.
Key Features
Complete list from the official datasheet.
24 bays, self-healing RAID. Smart search built in.
Two real capabilities that define this series: N+1 hot-spare RAID across 24 hot-swap bays, and VCA search working with smart cameras.
Twenty-four bays, and the array heals itself
Twenty-four hot-swap SATA bays, each up to 24 TB (up to 576 TB total), support Disk Group, Redundant Storage and RAID 0/1/5/6/10/50/60 — with N+1 Hot Spare, a standby disk in the array can take over automatically before you even swap the failed drive.
Built-in search across hundreds of channels
Face Detection, Face Comparison and Vehicle Detection (LPR) on Uniview smart cameras feed this recorder's VCA Search — Face Snapshot Search, Face Comparison Search, Motor/Non-Motor Vehicle Search, Human Body Search, People Counting Report and Heat Map — to narrow footage across up to 256 channels to the exact clip.
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.
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 | 2 × 32MP@30, 4 × 16MP@30, 5 × 12MP@30, 8 × 4K@30, 12 × 5MP@30, 20 × 3MP@30, 32 × 1080P@30, 64 × 720P@30, 128 × D1 |
| Decoding Capability Description | The resolution of each channel cannot exceed 8640 pixels in length or 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 | 640 Mbps |
| Outgoing Bandwidth | 640 Mbps |
| Max Users Can Be Added | 128 |
| Remote Users | 128 |
| Protocols | TCP/IP, P2P, UPnP, 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+ |
| Browser (Plugin-Free) | Windows/MAC/Linux: IE not supported, Firefox (58.0+), Chrome (57.0+), Edge (16+), Safari (11+) |
Video/Audio Input
| IP Video Input | 128E · 128-ch256E · 256-ch |
| RCA Audio Input | 1-ch |
Video/Audio Output
| Video Output | Support 2-ch HDMI, 2-ch VGA; HDMI1 and VGA1 simultaneous output, HDMI2 and VGA2 simultaneous output; HDMI1/VGA1 and HDMI2/VGA2 independent output |
| HDMI Output | HDMI1: 8K (7680 × 4320)/30 Hz, 4K (3840 × 2160)/60 Hz, 1920 × 1080/60 Hz, 1600 × 1200/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz; HDMI2: 4K (3840 × 2160)/60 Hz, 1920 × 1080/60 Hz, 1600 × 1200/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz |
| VGA Output | 1920 × 1080/60 Hz, 1600 × 1200/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz |
| HDMI Standard | HDMI1: 2.1, HDMI2: 2.0 |
| RCA Audio Output | 2-ch |
| Liveview Display | 1/4/6/8/9/16/25/36/64 |
| Default Num of Live Screen | 64 |
| Corridor Mode Screen | 3/4/5/7/9/10/12/16/32 |
| Playback Screen | 1/4/9/16 |
| Corridor Mode Screen of Playback | 1/3 |
| Two-way Audio | 1-ch, RCA (Using the audio input and output) |
| Snapshot | FTP/Schedule/Event; 16-ch snapshot (max. 8 MP (3840 × 2160) video resolution, with 1080P snapshot resolution) |
Recording
| Recording Resolution | 32MP/16MP/12MP/8MP/6MP/5MP/3MP/1080P/960P/720P/D1/2CIF/CIF |
| Num of Concurrent Playback | 32-ch |
| Synchronous Playback in Local | 16-ch |
Smart
| Smart by IPC | All channels (up to 32 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 | Motion Detection, Tampering, Human Body Detection, Video Loss, Alarm Input, Audio Detection, People Present Alarm |
| 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 |
Hard Disk
| SATA | 24 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 0, 1, 5, 6, 10, 50, 60 |
| Hot Swap | Support |
External Interface
| Network Interface | 2 RJ45 10 M/100 M/1000 M self-adaptive Ethernet Interface |
| Network Working Mode | Multi-access, load balance, network fault-tolerance |
| USB | Front panel: 2 × USB2.0, Rear panel: 2 × USB3.0 |
| RS485 | 1 |
| RS232 | 1 |
| Alarm In | 16-ch |
| Alarm Out | 10-ch |
| Power Output | 12 V |
| Power Supply | AC 100 to 240 V |
| Buzzer | Support |
| Power Switch | Support |
Working Environment
| Working Temperature | -10 °C to 55 °C (14 °F to 131 °F) |
| Working Humidity | ≤ 90% RH (non-condensing) |
| Power Consumption (without HDD) | ≤ 50 W |
| Heat Dissipation | Fan, Radiator |
Dimensions
| Weight (without HDD) | ≤ 10 kg (22.05 lb) |
| Height | 4U |
| Dimensions | 485 mm × 539 mm × 175 mm (19.1" × 21.2" × 6.9") |
Certification
| Certification | CE; FCC; RoHS; WEEE |
| CE | EN 55032, EN 61000-3-3, EN IEC 61000-3-2, EN 55035 |
| FCC | Part15 Subpart B |
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 |
Compliance
| NDAA Compliant | Support |
Dimensions
Engineering drawing reproduced 1:1 from the official datasheet.
| Weight (without HDD) | ≤ 10 kg (22.05 lb) |
| Height | 4U |
| Dimensions | 485 mm × 539 mm × 175 mm (19.1" × 21.2" × 6.9") |
| Power supply | AC 100 to 240 V |
| Consumption (without HDD) | ≤ 50 W |
Optional Mounting Accessories
Order together with the camera to save shipping.
128/256-Channel 24-Bay NVR FAQ — NVR524-E Series
How much total storage do 24 bays give me?
Is 640 Mbps enough for 256 cameras?
Can it feed a video wall or two control-room screens?
Do operators need a browser plugin to view it?
How do I find a person or vehicle in the footage?
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