NVR / Recorders › NVR516-64E-R / 128E-R
Uniview (UNV)NVR516-E-R Series · 16× SATA HDD
16-HDD Hot-Swap RAID Network Video Recorder · E-R Series
NVR516-64 / 128E-R
64 / 128-channel 3U rack-mount network video recorder — 16 hot-swap SATA bays with RAID 0/1/5/6/10/50/60, records cameras up to 32MP, Ultra 265 compression, optional redundant power supply.
32MP · max recordingRAID 0/1/5/6/10/50/60 · hot-swap 16-bay storageUltra 265 · low storage2× HDMI/VGA · independent output pairsRedundant PSU · optional38 languages · local interface
Choose your size — two models on this page
Rule of thumb: count your cameras across the whole site, then leave room to grow — the 64E-R covers most large single sites; step up to the 128E-R for campus-scale or multi-building deployments. Highlighted rows in the spec table below show every difference between the two.
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The Uniview NVR516-E-R Series is a 16-bay 3U rack-mount network video recorder offered in two sizes: NVR516-64E-R (64-ch) and NVR516-128E-R (128-ch). Both record cameras up to 32MP with Ultra 265 / H.265 / H.264 compression, support hot-swappable SATA drives (up to 24 TB each) configurable as RAID 0, 1, 5, 6, 10, 50 or 60, and accept an optional second power supply for redundancy. The recorder outputs over 2 HDMI (HDMI1 up to 8K, HDMI2 up to 4K) and 2 VGA ports, includes Smart features such as face, vehicle (LPR) and temperature detection, and provides a 38-language local interface.
Is this the right recorder for you?
Plain-language guide for buyers and installers — based only on what this recorder actually does.
Large multi-building sites128 channels and 16 hot-swap HDD bays cover a large campus from one recorder — fewer boxes to manage across buildings.
Growing deploymentsBuy channels ahead: the 128E-R lets you add cameras later without swapping the recorder.
Mission-critical, zero-downtime storageHot-swap RAID 0/1/5/6/10/50/60 across the 16 bays plus N+1 hot spare and an optional second power supply — a failed disk or PSU doesn't take the recorder down.
Unreliable network linksANR technology keeps recording locally when the network drops, then backfills the gap once the connection is restored.
Investigation & retrievalFace detection, face comparison, vehicle (LPR), human body, heat-map and people-counting search narrow hours of footage across up to 128 channels down to the right clip.
Two independent display zonesHDMI1/VGA1 and HDMI2/VGA2 output independently, with HDMI1 reaching 8K — a control room can show a live wall on one screen pair and playback on the other.
Multi-language deployments38 GUI languages including Spanish (Latin America), Portuguese (Brazil) and French — your customer operates it in their own language.
Not the right pick if you need…
- PoE ports — this recorder has no built-in PoE; cameras need a separate PoE switch
- A redundant power supply included as standard — the manual lists it as an optional add-on module (PWR-DC12-350A-IN), not pre-installed
- Full per-channel bandwidth headroom at 128 channels — 640 Mbps incoming bandwidth is shared across all channels, so plan the average bitrate per camera accordingly at the top model
- 8K or 4K resolution over VGA — VGA output tops out at 1920×1080; use HDMI1 for the 8K/4K modes
- A dedicated two-way audio port — two-way audio reuses the shared RCA audio input/output jacks, not a separate connector
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Key Features
Complete list from the official datasheet.
Support Ultra 265/H.265/H.264 video formats
64/128-channel input
Support 2-ch HDMI, 2-ch VGA, HDMI1 at up to 8K (7680×4320) resolution, HDMI2 at up to 4K (3840×2160) resolution
VGA1 and HDMI1 simultaneous output, VGA2 and HDMI2 simultaneous output. VGA1/HDMI1 and VGA2/HDMI2 independent output
Up to 32 Megapixels resolution recording
Redundant power supply optional
Support HDD hot swap with RAID 0, 1, 5, 6, 10, 50, 60 storage scheme configurable
Support 12V power output
ANR technology to enhance the storage reliability when the network is disconnected
Support cloud upgrade
Support N+1 Hot spare
Hot-swap RAID storage. Investigation-ready search.
The two capabilities that decide whether a large-scale recorder survives a hardware failure and finds the footage that matters.
HOT-SWAP RAID 0/1/5/6/10/50/60
Swap a failed disk without downtime
16 hot-swap SATA bays (up to 24 TB each) configurable as RAID 0, 1, 5, 6, 10, 50 or 60, plus N+1 hot spare — a failed drive is pulled and replaced while the array and the recorder keep running.
SMART SEARCH
Find the moment across 128 channels
Face detection, face comparison, vehicle (LPR), temperature detection, human body and general VCA search plus Heat Map and People Counting turn hours of multi-channel footage into the exact clip you need.
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.
NVR516-64E-R64-ch input · live view split up to 64 · sync playback 16-ch
64cameras
NVR516-128E-R128-ch input · live view split up to 64 · sync playback 16-ch
128cameras
Who uses it, where it goes and how to size it
Written for the Uniview NVR516-64E-R and NVR516-128E-R from the official datasheet: 64 or 128 channels sharing 640 Mbps incoming, cameras up to 32 MP, 16 hot-swap SATA bays up to 24 TB each with RAID 0/1/5/6/10/50/60, HDMI1 up to 8K, optional second power supply.
Which variant suits which project
- NVR516-64E-R: a large site with all cameras in 4K or higher — Airport terminals, stadiums, logistics hubs and factories with up to 64 cameras. The 640 Mbps input gives an average of 10 Mbps per channel, so all 64 channels can run 4K cameras at 8 Mbps (512 Mbps) with room to spare, and 12–32 MP panoramic cameras can be mixed in.
- NVR516-128E-R: campuses and multi-building projects — Universities, hospitals and industrial parks with 65–128 cameras, or a 64-camera site that will grow. The same 640 Mbps is shared by 128 channels, an average of 5 Mbps each, which suits 2–5 MP cameras on H.265/Ultra 265; about 80 cameras fit at 8 Mbps.
- Control rooms with a big screen or video wall — HDMI1 goes up to 8K and HDMI2 up to 4K/60 Hz, the two HDMI/VGA pairs run independently, and the decoder shows 12 × 4K@30 on H.265. The optional FB-HD04-B-NB (4 HDMI) and FB-HD07-B-NB (7 HDMI) decoding cards add outputs for a wall.
- Sites that need months of footage — Casinos, banks and public-safety projects: 16 disks of up to 24 TB give 384 TB raw (336 TB in RAID 6), and Disk Group and Redundant Storage are supported, so key cameras can be kept on their own disks or recorded twice.
Where and how to install the recorder
- A deep 19-inch rack, on rails — The chassis is 3U and 482 × 533 mm deep × 131 mm, 6.5 kg without disks: 56 mm deeper than the NVR516-64/128. Fit it on SL-A slide rails in a cabinet deep enough for 533 mm plus rear cables and power cords, so it can slide out when a disk or power module is changed.
- Keep the room at or below 40 °C — The recorder itself runs from -10 °C to 55 °C, but the datasheet allows 24 TB disks only where the room does not exceed 40 °C, and the largest disk also depends on disk size. Use an air-conditioned room, leave the front and rear of the chassis open to airflow and do not stack heavy equipment on top.
- Second power module and UPS — Input is AC 100–240 V with a power switch; redundancy needs the optional PWR-DC12-350A-IN (350 W) module, which is not pre-installed. Feed the two modules from different circuits or UPS units. The ≤ 50 W figure is without disks, so size the UPS for the recorder with 16 disks plus the camera PoE switches.
- Two Gigabit ports, no SFP — The recorder has 2 RJ45 Gigabit ports and no PoE or SFP. The 640 Mbps input fits in one Gigabit (1000 Mbps) link, so use one port for the camera network and the other for operators and the Internet. Cameras go on PoE switches (copper up to 100 m per run); bring distant buildings in over fibre to a core switch with SFP ports, then copper to the recorder.
- Disks and RAID before recording — Fit 16 identical 3.5-inch SATA surveillance-grade disks (up to 24 TB each) and build the RAID array or disk groups before cameras record, because an array only uses the capacity of its smallest disk. Keep one or two spare disks of the same model on site so a failed one can be hot-swapped the same day.
- Monitors and export — HDMI1 and VGA1 show the same picture, as do HDMI2 and VGA2; the two pairs are independent. The datasheet notes that VGA live video is output by default, so to get the full 8K/4K picture on HDMI clear the VGA video on the preview page. Use the rear USB 3.0 ports for exporting large clips; the front has 2 USB 2.0 for a mouse.
Planning table: channels, bandwidth, disks, RAID and retention
Both models have the same 640 Mbps input, 16 bays of up to 24 TB, RAID levels, outputs and ports; the 128E-R adds 64 channels and a little more 720P/D1 decoding. Because the bandwidth is shared, the 64E-R gives each camera twice as much (10 Mbps vs 5 Mbps on average). Choose by camera count and resolution, not by storage, which is identical.
| NVR516-64E-R | NVR516-128E-R | |
|---|---|---|
| IP camera channels | 64 | 128 |
| Incoming bandwidth | 640 Mbps | 640 Mbps |
| Average bitrate per camera with every channel in use | 10 Mbps | 5 Mbps |
| Cameras at 8 Mbps (typical 4K H.265) within the bandwidth | 64 (all channels) | 80 |
| Max camera resolution | 32 MP | 32 MP |
| HDD bays × max capacity per disk | 16 × SATA, ≤ 24 TB (room ≤ 40 °C) | 16 × SATA, ≤ 24 TB (room ≤ 40 °C) |
| Maximum raw storage | 384 TB | 384 TB |
| RAID levels | 0/1/5/6/10/50/60, hot swap | 0/1/5/6/10/50/60, hot swap |
| Usable with all bays in one RAID 5 / RAID 6 array | 360 TB / 336 TB | 360 TB / 336 TB |
| Decoding (live view / playback) | H.265: 12×4K@30, 48×1080P@30, 64×720P@30 | H.265: 12×4K@30, 48×1080P@30, 96×720P@30 |
| Video outputs | HDMI1 8K + VGA1, HDMI2 4K + VGA2 | HDMI1 8K + VGA1, HDMI2 4K + VGA2 |
| Network ports | 2 × RJ45 1000M | 2 × RJ45 1000M |
| Power supply | AC 100–240 V; 2nd module optional (PWR-DC12-350A-IN) | AC 100–240 V; 2nd module optional (PWR-DC12-350A-IN) |
| Days on RAID 6 (336 TB), every channel at 4 Mbps | 121.5 (64 cameras) | 60.8 (128 cameras) |
| Days on RAID 6 (336 TB), 4K cameras at 8 Mbps up to the limit | 60.8 (64 cameras) | 48.6 (80 cameras) |
- Pick the NVR516-64E-R when all or most cameras are 4K or above: 64 cameras at 8 Mbps use 512 of the 640 Mbps.
- Pick the NVR516-128E-R for more than 64 cameras of 2–5 MP at up to 5 Mbps each, or to buy channels ahead for later phases.
- With 24 TB disks use RAID 6 or RAID 60: 336 TB usable instead of 360 TB in RAID 5, and the array survives a second disk failure during the long rebuild.
Assumptions: continuous 24-hour recording, 4 Mbps per 4 MP camera and 8 Mbps per 4K camera (typical H.265 main streams), decimal terabytes. Days = usable TB × 10^12 ÷ (cameras × bitrate ÷ 8 × 86,400). RAID 5 usable = 15 × 24 TB, RAID 6 usable = 14 × 24 TB; formatted capacity is slightly lower. 24 TB disks require a room at or below 40 °C; with 16 TB disks every figure scales by 2/3.
Full Specifications
Complete official specifications from the manufacturer's datasheet (technical values in English).
Highlighted rows differ between the two models:NVR516-64E-R · 64-chNVR516-128E-R · 128-ch
Decoding
| Decoding Format | Ultra 265, H.265, H.264 |
| Decoding Capability | 64E-R · H264 : 2 × 32MP@30, 4 × 16MP@30, 6 × 12MP@30, 9 × 4K@30, 14 × 5MP@30, 18 × 4MP@30, 24 × 3MP@30, 36 × 1080P@30, 64 × 720P@30 | H265 : 3 × 32MP@30, 6 × 16MP@30, 8 × 12MP@30, 12 × 4K@30, 19 × 5MP@30, 24 × 4MP@30, 32 × 3MP@30, 48 × 1080P@30, 64 × 720P@30128E-R · H264 : 2 × 32MP@30, 4 × 16MP@30, 6 × 12MP@30, 9 × 4K@30, 14 × 5MP@30, 18 × 4MP@30, 24 × 3MP@30, 36 × 1080P@30, 72 × 720P@30, 128 × D1 | H265 : 3 × 32MP@30, 6 × 16MP@30, 8 × 12MP@30, 12 × 4K@30, 19 × 5MP@30, 24 × 4MP@30, 32 × 3MP@30, 48 × 1080P@30, 96 × 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, please clear the VGA video on the preview page. |
| Audio Compression | G.711A, G.711U |
Network
| Incoming Bandwidth | 640 Mbps |
| Outgoing Bandwidth | 640 Mbps |
| 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+ |
Video/Audio Input
| IP Video Input | 64E-R · 64-ch128E-R · 128-ch |
| RCA Audio Input | 1-ch |
Video/Audio 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 |
| RCA Audio Output | 2-ch |
| Liveview Display | 1/4/6/8/9/16/25/36/64 |
| Corridor Mode Screen | 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; 16-ch snapshot (max. 8 MP (3840 × 2160) video resolution, with 1080P snapshot resolution) |
Recording
| Recording Resolution | 32 MP/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 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 | 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 | 16 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 |
| 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 |
| Power Switch | Support |
| Redundant Power Supply | 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 |
Dimensions
| Weight (without HDD) | ≤ 6.5 Kg (14.3 lb) |
| Height | 3U |
| Dimensions | 482 mm × 533 mm × 131 mm (19.0" × 21.0" × 5.1") |
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 | 482 mm × 533 mm × 131 mm (19.0" × 21.0" × 5.1") |
| Height | 3U |
| Weight (without HDD) | ≤ 6.5 kg (14.3 lb) |
| Power supply | AC 100 to 240 V |
| Consumption (without HDD) | ≤ 50 W |
Rear panel — all interfaces
Optional Mounting & Expansion Accessories
Order together with the recorder to save shipping.
FB-HD04-B-NB4-ch HDMI output decoding card
FB-HD07-B-NB7-ch HDMI output decoding card
SL-ASlide rail
PWR-DC12-350A-IN350W power accessories module (redundant PSU)
64/128-Channel Hot-Swap RAID NVR FAQ — NVR516-E-R
What happens when a hard disk fails?
You pull it and slide in a new one while the system keeps running — all 16 SATA bays are hot-swap. RAID 0, 1, 5, 6, 10, 50 and 60 plus an N+1 hot spare protect footage, and each bay accepts up to 24 TB, giving 384 TB total.
How much video can 128 channels push into it?
Incoming bandwidth is 640 Mbps — an average of 5 Mbps per camera with all 128 channels connected, which fits 4MP Ultra 265 mainstreams. Outgoing bandwidth is also 640 Mbps, and up to 128 remote users can connect through P2P, HTTP/HTTPS or DDNS without a fixed IP.
What is the maximum camera resolution and monitor output?
Recording goes up to 32 MP, and H.264 decoding handles 2 × 32MP@30 or 9 × 4K@30 on the 64E-R. HDMI1 outputs up to 8K (7680 × 4320) at 30 Hz or 4K at 60 Hz, with VGA up to 1080p60 and live view splits up to 64 windows.
Which smart functions work across the channels?
Camera-side analytics — Face Detection, Face Comparison, Vehicle Detection (LPR) and Temperature Detection — arrive on all channels at up to 32 images per second. The recorder adds Face Snapshot Search, Face Comparison Search, motor and non-motor vehicle search and human body search, plus Heat Map and People Counting for retail-style reporting.
Is it suitable for sites with unreliable mains power?
The supply accepts AC 100–240 V and a redundant power supply is supported, so one PSU can fail without stopping recording. Consumption is no more than 50 W without disks, the working range is -10 °C to 55 °C, and the 3U chassis weighs under 6.5 kg before drives.
Can the NVR516-64E-R / 128E-R record Hikvision, Dahua or other third-party cameras?
Usually yes, but confirm your models first. Uniview recorders normally add other brands over ONVIF, yet ONVIF is not in this datasheet's protocol list (RTSP is), so send us the camera models before ordering. Other brands will record and show live video; the face, LPR, heat-map and people-counting searches depend on Uniview smart cameras, because the analysis is done by the camera (Smart by IPC).
I have 60 cameras now: should I buy the NVR516-64E-R or the NVR516-128E-R?
If the site will grow past 64 cameras, buy the 128E-R now; storage, outputs and ports are the same, so you only pay for channels. If the cameras are mostly 4K or higher and the count stays at 64 or less, the 64E-R is the better fit, because the shared 640 Mbps gives 10 Mbps per channel instead of 5 Mbps. Remember that adding cameras to a full disk array shortens retention in proportion.
How do I build a video wall from the NVR516-E-R?
Out of the box you get two independent screen pairs: HDMI1 (up to 8K) with VGA1, and HDMI2 (up to 4K/60 Hz) with VGA2, each with up to 64 views. For more screens, add the optional FB-HD04-B-NB (4 HDMI outputs) or FB-HD07-B-NB (7 HDMI outputs) decoding card; tell us the wall layout and we will confirm the card combination. Total decoding is 12 × 4K@30 or 48 × 1080P@30 on H.265, so a wall with many tiles should use the cameras' sub-streams.
How many days will the NVR516-128E-R keep with 24 TB disks?
With 16 × 24 TB in RAID 6 (336 TB usable) and all 128 cameras recording 24 hours at 4 Mbps, about 60.8 days; with 64 cameras at 4 Mbps, about 121.5 days. The formula is days = TB × 10^12 ÷ (cameras × bitrate ÷ 8 × 86,400), and real capacity after formatting is slightly lower. 24 TB disks are allowed only in a room at or below 40 °C; use surveillance-grade drives rated for 24/7 recording.
What is the difference between the NVR516-64E-R and the NVR516-64?
The E-R is the newer, stronger platform: 640 Mbps input instead of 384 Mbps, cameras up to 32 MP instead of 12 MP, disks up to 24 TB instead of 16 TB, HDMI1 up to 8K and much higher decoding (12 × 4K@30 on H.265 instead of 4 × 4K@30), plus optional HDMI decoding cards. The NVR516-64 keeps things the E-R lacks: 2 SFP fibre ports and 4 RJ45 instead of 2 RJ45, 2 miniSAS and eSATA for expansion, and 24 alarm inputs instead of 16. Both have 16 hot-swap bays with RAID 0/1/5/6/10/50/60 and an optional second power supply.
How many people can watch the NVR516-E-R remotely at the same time?
The recorder allows 128 remote users and 640 Mbps of outgoing bandwidth, and remote access works through P2P, DDNS or a web browser (Chrome 45+, Edge 79+, Firefox 52+, IE10/11). In practice the limit is the site's Internet upload speed: a 4 MP main stream at 4 Mbps needs 4 Mbps of upload per viewer, so remote users should watch sub-streams. On a LAN or private network the 640 Mbps outgoing figure applies.
Ordering questions — samples, shipping, payment, lead time and genuine stock — are answered once on our FAQ page.
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