NVR / Recorders › NVR504-16E-IQ / 32E-IQ / 64E-IQ
Uniview (UNV)NVR504-E-IQ Series · 4× SATA HDD (RAID)
4-HDD Network Video Recorder · NVR504-E-IQ Series
NVR504-16 / 32 / 64E-IQ
16 / 32 / 64-channel network video recorder — four SATA bays with RAID 0/1/5 support for redundant storage, Ultra 265 compression, dual independent 4K HDMI/VGA output, records cameras up to 32MP, with onboard Face Detection, Vehicle Detection (LPR) and AI smart search.
32MP · max recordingUltra 265 · low storage4× SATA · up to 24 TB eachRAID 0/1/5 · redundant storageAI Search · face & vehicle detection38 languages · local interface
Choose your size — three models on this page
Rule of thumb: count your cameras across the whole site, then leave room to grow — 16 channels covers a single building; step up to the 32E-IQ or 64E-IQ if you're combining several buildings, a large campus, or expect to add cameras later. Highlighted rows in the spec table below show every difference between the three.
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The Uniview NVR504-E-IQ Series is a 4-HDD network video recorder offered in three sizes: NVR504-16E-IQ (16-ch), NVR504-32E-IQ (32-ch) and NVR504-64E-IQ (64-ch). All three record cameras up to 32MP with Ultra 265 / H.265 / H.264 compression, support RAID 0, RAID 1 and RAID 5 with Disk Group and Redundant Storage across four independent SATA bays (up to 24 TB each), and include built-in Face Detection, Vehicle Detection (LPR), Temperature Detection and AcuSearch / AcuTrack smart search. Two independent HDMI/VGA output pairs (HDMI1+VGA1 and HDMI2+VGA2) run at the same time, 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.
Large sites & multi-building campuses16, 32 or 64 channels in one box covers a full warehouse, factory floor, or multi-building campus without stacking multiple recorders.
Uptime-critical storageDisk Group and Redundant Storage with RAID 0, 1 or 5 across the four bays mean a single failed drive doesn't take the recording offline — built for sites where continuous coverage matters.
Two independent monitor outputsHDMI1+VGA1 and HDMI2+VGA2 run as two separate output pairs at the same time — put the full wall on one screen and a secondary control view on another, without extra hardware.
Growing camera countsBuy channels you don't use yet: the 32E-IQ or 64E-IQ lets you add cameras later without replacing the recorder.
Remote viewing on phoneP2P protocol built in — the manager checks every site from a phone app without a fixed IP or network skills.
Local-language interface38 GUI languages including Spanish (Latin America), Portuguese (Brazil) and French — your customer operates it in their own language.
Quick incident lookup across many channelsBuilt-in Face Detection, Vehicle Detection (LPR) and Temperature Detection feed AcuSearch, AcuTrack and Face Snapshot Search — jump straight to the clip you need instead of scrubbing hours of footage across up to 64 channels.
Not the right pick if you need…
- PoE ports — cameras need a separate PoE switch (this recorder has no built-in PoE ports)
- A fifth hard disk or more — this series tops out at 4 SATA bays (up to 96 TB total with four 24 TB drives)
- RAID 6 or RAID 10 — the Disk Array Type on this series supports RAID 0, 1 and 5 only
- A single unified 4-way display — HDMI1/VGA1 and HDMI2/VGA2 are two independent output pairs, not four synced views of one layout
- DC-only power sites — this recorder runs on AC 100–240V mains, with no DC input option
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Key Features
Complete list from the official datasheet.
Support Ultra 265/H.265/H.264 video formats
Support 16/32/64-channel input
Support 2 HDMI and 2 VGA — VGA1 and HDMI1 simultaneous output, VGA2 and HDMI2 simultaneous output; VGA1/HDMI1 and VGA2/HDMI2 independent output
Support ANR technology to enhance the storage reliability when the network is disconnected
Support cloud upgrade
Four bays, RAID protected. AI finds the moment.
Two real capabilities that define this series: RAID-protected multi-bay storage and onboard AI search.
RAID PROTECTED STORAGE
Room to grow, protected against drive failure
Four independent SATA bays each take a disk up to 24 TB — up to 96 TB in one recorder, with Disk Group and Redundant Storage supporting RAID 0, 1 or 5 so a single drive failure doesn't stop recording.
AI SEARCH
Find the moment, not the footage
Built-in Face Detection, Vehicle Detection (LPR) and Temperature Detection on the camera side feed AcuSearch, AcuTrack, Face Snapshot Search and Human Body Search on the recorder — narrow hours of footage down to the exact clip across up to 64 channels.
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.
NVR504-16E-IQ16-ch input · Smart Off decoding up to 2×32MP@30 · live view split up to 16
16cameras
NVR504-32E-IQ32-ch input · Smart Off decoding up to 2×32MP@30 · live view split up to 32 (HDMI1/VGA1)
32cameras
NVR504-64E-IQ64-ch input · Smart Off decoding up to 2×32MP@30 · live view split up to 64 (HDMI1/VGA1)
64cameras
Who uses it, where it goes and how to size it
Written for the NVR504-16E-IQ, 32E-IQ and 64E-IQ from the official datasheet: 16, 32 or 64 IP channels, 384 Mbps incoming (200 Mbps with smart analysis on), 4 SATA bays up to 24 TB each with RAID 0/1/5, two independent HDMI/VGA output pairs, 2U case on AC 100–240 V, no built-in PoE.
Which size suits which installation
- NVR504-16E-IQ: one building with high-resolution cameras — 16 channels sharing 384 Mbps leaves up to 24 Mbps per camera (12.5 Mbps with smart analysis on), so 4K, 12 MP or larger cameras record at full quality, with RAID 5 protection that 1- and 2-bay recorders cannot offer.
- NVR504-32E-IQ: factories, schools and several buildings — 32 cameras of 4–8 MP: 12 Mbps per channel with smart analysis off, 6.25 Mbps with it on. The first output pair shows up to 32 cameras while the second runs a separate 16-camera view for the guard desk.
- NVR504-64E-IQ: campuses and large sites with 2–4 MP cameras — 64 channels share the same 384 Mbps: about 6 Mbps per camera with smart analysis off and 3.125 Mbps with it on, so it suits many 2–4 MP cameras on H.265/Ultra 265. With 64 cameras, 4 disks fill quickly: see the retention rows.
- Car parks, gates and integrators with alarm wiring — With Uniview LPR cameras it keeps up to 5 vehicle picture libraries (25,000 pictures) and 2 million vehicle snapshot records; 16 alarm inputs, 10 alarm outputs, RS485 and RS232 connect sirens, door contacts and control systems.
Where and how to install the recorder
- 19-inch rack, 2U — The case is 442 × 432 × 86 mm (2U) and weighs up to 5.5 kg before disks. Mount it in a locked rack or cabinet with the FL-2U rack mount, or on a fixed shelf; keep it away from public areas so the recorder and its evidence cannot be carried away.
- Keep four disks cool — The recorder runs from -10 °C to 55 °C, but 24 TB disks are only rated for rooms that stay at or below 40 °C. Leave free space at the front and rear vents, use a ventilated rack and do not place it in a hot roof space or a sealed metal box.
- Mains power and UPS — It takes AC 100–240 V directly (no DC input) and draws up to 35 W without disks; four drives add their own load. Put the recorder, the PoE switches and the router on a UPS so recording continues through short outages and the RAID array is not hit by sudden power cuts.
- Cameras through PoE switches, two network ports — There are no PoE ports. Cameras connect to PoE switches (each copper run within 100 m) and the switches uplink to one of the two gigabit RJ45 ports. The two ports support multi-access, load balance and fault tolerance, so you can keep the camera network and the office/internet network separate.
- Choose and install the disks first — Fit 3.5-inch SATA surveillance-grade drives, ideally four of the same size, before power-on, and decide on RAID 5, RAID 1 or plain disks before recording starts, because building an array erases the disks. Use the rear USB 3.0 ports or eSATA for exporting clips.
Planning table: channels, bandwidth, disks and retention
All three share the same 2U case, 384 Mbps input (200 Mbps with smart analysis on), four SATA bays with RAID 0/1/5, and the same top decoding power. What changes is the channel count, the bandwidth each camera gets when every channel is used, the largest split screen, and how long four disks last.
| NVR504-16E-IQ | NVR504-32E-IQ | NVR504-64E-IQ | |
|---|---|---|---|
| IP camera channels | 16 | 32 | 64 |
| Incoming bandwidth (Smart Off / Smart On) | 384 / 200 Mbps | 384 / 200 Mbps | 384 / 200 Mbps |
| Bandwidth per camera, all channels used (Smart Off / Smart On) | 24 / 12.5 Mbps | 12 / 6.25 Mbps | 6 / 3.125 Mbps |
| Hard disks | 4 × SATA, ≤ 24 TB each (96 TB) | 4 × SATA, ≤ 24 TB each (96 TB) | 4 × SATA, ≤ 24 TB each (96 TB) |
| RAID / usable with RAID 5 (4 × 24 TB) | 0, 1, 5 / 72 TB | 0, 1, 5 / 72 TB | 0, 1, 5 / 72 TB |
| Decoding, Smart Off (largest added item) | 2×32MP, 8×4K, 16×4MP @30 | + 20×3MP, 32×1080P @30 | + 64×720P @30 |
| Largest split screen (HDMI1/VGA1 / HDMI2/VGA2) | 16 / 16 | 32 / 16 | 64 / 16 |
| Days on 4 × 24 TB (96 TB), all channels at 4 Mbps | 138.9 | 69.4 | 34.7 * |
| Days in RAID 5 (72 TB usable), all channels at 4 Mbps | 104.2 | 52.1 | 26.0 * |
- Pick the 16E-IQ for up to 16 cameras, including 4K or 12 MP at full bitrate, when you want RAID 5 protection in one 2U box.
- Pick the 32E-IQ for 17–32 cameras of 4–8 MP; with smart analysis on, keep each camera at about 6 Mbps or less (32 × 6 = 192 Mbps).
- Pick the 64E-IQ for 33–64 cameras of 2–4 MP; if you need many 4K cameras or longer retention at that count, look at the 8-bay NVR508-64E-IQ.
Retention assumes continuous 24-hour recording at 4 Mbps per camera (a typical H.265 main stream for a 4 MP camera): days = TB × 10^12 ÷ (cameras × 4,000,000 ÷ 8 × 86,400). RAID 5 with four equal disks gives three disks of usable space (4 × 24 TB → 72 TB). * 64 cameras at 4 Mbps = 256 Mbps, which fits 384 Mbps with smart analysis off but not the 200 Mbps limit with it on. Ultra 265, lower frame rates or event recording give more days; 24 TB disks require a room at or below 40 °C.
Full Specifications
Complete official specifications from the manufacturer's datasheet (technical values in English).
Highlighted rows differ between the three models:NVR504-16E-IQ · 16-chNVR504-32E-IQ · 32-chNVR504-64E-IQ · 64-ch
Decoding
| Decoding Format | Ultra 265, H.265, H.264 |
| Decoding Capability | 16E-IQ · Smart Off: 2×32MP@30, 4×16MP@30, 5×12MP@30, 8×4K@30, 10×6MP@30, 12×5MP@30, 16×4MP@30 | Smart On: 1×32MP@30, 3×16MP@30, 4×12MP@30, 6×4K@30, 8×6MP@30, 9×5MP@30, 12×4MP@30, 16×3MP@3032E-IQ · Smart Off: 2×32MP@30, 4×16MP@30, 5×12MP@30, 8×4K@30, 10×6MP@30, 12×5MP@30, 16×4MP@30, 20×3MP@30, 32×1080P@30 | Smart On: 1×32MP@30, 3×16MP@30, 4×12MP@30, 6×4K@30, 8×6MP@30, 9×5MP@30, 12×4MP@30, 16×3MP@30, 24×1080P@30, 32×720P@3064E-IQ · Smart Off: 2×32MP@30, 4×16MP@30, 5×12MP@30, 8×4K@30, 10×6MP@30, 12×5MP@30, 16×4MP@30, 20×3MP@30, 32×1080P@30, 64×720P@30 | Smart On: 1×32MP@30, 3×16MP@30, 4×12MP@30, 6×4K@30, 8×6MP@30, 9×5MP@30, 12×4MP@30, 16×3MP@30, 24×1080P@30, 48×720P@30, 64×D1 |
| Decoding Capability Description | The resolution of each channel cannot exceed 8192 pixels in length or width |
| Audio Compression | G.711A, G.711U |
Network
| Incoming Bandwidth | Smart Off: 384 Mbps / Smart On: 200 Mbps |
| Outgoing Bandwidth | Smart Off: 384 Mbps / Smart On: 200 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 | 16E-IQ · 16-ch32E-IQ · 32-ch64E-IQ · 64-ch |
| RCA Audio Input | 1-ch |
| Peripheral Input — POS | All channels |
Video/Audio Output
| HDMI Output | 4K (3840 × 2160)/60 Hz, 4K (3840 × 2160)/30 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 | 16E-IQ · 1/4/6/8/9/1632E-IQ · HDMI1 and VGA1: 1/4/6/8/9/16/25/32; HDMI2 and VGA2: 1/4/6/8/9/1664E-IQ · HDMI1 and VGA1: 1/4/6/8/9/16/25/36/64; HDMI2 and VGA2: 1/4/6/8/9/16 |
| Corridor Mode Screen | 16E-IQ · 3/4/5/7/9/10/12/1632E-IQ · HDMI1 and VGA1: 3/4/5/7/9/10/12/16/32; HDMI2 and VGA2: 3/4/5/7/9/10/12/1664E-IQ · HDMI1 and VGA1: 3/4/5/7/9/10/12/16/32; HDMI2 and VGA2: 3/4/5/7/9/10/12/16 |
| 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 |
| Num of Concurrent Playback | 32-ch |
| Synchronous Playback in Local | 16-ch |
Smart Function
| Smart by IPC | All channels (up to 16 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 | Mixed Mode (Face Recognition+Mixed-Traffic Dection+AcuSearch/AcuTrack), Mixed Mode (SIP+UMD), 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 16-ch with UNV Face Detection Camera, Up to 4-ch with normal camera (UNV and Third-part brand, 4-ch 2MP, 2-ch 4MP, 1-ch 4K) |
| 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 8-ch with normal camera (UNV and Third-part brand, 8-ch 2MP, 4-ch 4MP, 2-ch 4K) |
| UMD by NVR with normal cameras | Up to 16-ch with normal camera (UNV and Third-part brand, 16-ch 2MP, 8-ch 4MP, 4-ch 4K) |
| Capacity of Snapshot Records | 3 millions records for face snapshot, 2 millions records for vehicle snapshot, 2 millions records for SIP |
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 0, 1, 5 |
External Interface
| Network Interface | 2 RJ45 10 M/100 M/1000 M self-adaptive Ethernet Interface |
| Network Working Mode | Muli-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 |
| eSATA | 1 |
| Power Output | 12 V |
| Power Supply | AC 100~240V |
Working Environment
| Working Temperature | -10 °C ~ +55 °C (+14 °F ~ +131 °F) |
| Working Humidity | ≤ 90% RH (non-condensing) |
| Power Consumption (without HDD) | ≤ 35 W |
Dimensions
| Weight (without HDD) | ≤ 5.5 Kg (12.1 lb) |
| Height | 2U |
| Dimensions | 442 mm × 432 mm × 86 mm (17.4" × 17.0" × 3.4") |
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 |
Compliance
| NDAA Compliant | Support |
Dimensions
Engineering drawing reproduced 1:1 from the official datasheet.
unit: mm (in.)
| Dimensions | 442 mm × 432 mm × 86 mm (17.4" × 17.0" × 3.4") |
| Height | 2U |
| Weight (without HDD) | ≤ 5.5 kg (12.1 lb) |
| Power supply | AC 100–240V |
| Consumption (without HDD) | ≤ 35 W |
Rear panel — all interfaces
Optional Mounting Accessories
Order together with the camera to save shipping.
FL-2U4 HDDs & 8 HDDs 2U NVR rack mount
16/32/64-Channel AI NVR FAQ — NVR504-E-IQ Series
Does the NVR504-E-IQ have PoE ports for cameras?
No — this E series has no onboard PoE. The spec lists two 10/100/1000M RJ45 network interfaces with multi-access, load-balance and fault-tolerance modes, so cameras connect through external PoE switches. That is the usual layout for 32–64 camera sites, where switches sit near the cameras and only network traffic reaches the recorder.
How many hard drives fit, and is footage protected?
Four SATA bays, each accepting up to 24 TB — 96 TB total. RAID 0, 1 and 5 are supported along with Disk Group and Redundant Storage, so a single failed drive does not take your recordings with it. Recording resolution reaches 32 MP with Ultra 265/H.265/H.264.
What can the AI do on this recorder?
Onboard analytics include Face Detection, Face Comparison, Smart Intrusion Prevention (SIP) and Ultra Motion Detection (UMD). Face recognition runs on up to 16 channels with UNV face-detection cameras, or 4 channels with normal cameras. AcuSearch, AcuTrack, vehicle search and search by image speed up investigations across all channels.
Is 384 Mbps enough for 64 IP cameras?
With smart functions off, incoming bandwidth is 384 Mbps — an average of 6 Mbps per camera on the 64-channel model, which covers typical 4MP Ultra 265 mainstreams. With smart functions on, intake is 200 Mbps, about 3 Mbps per camera, so plan mainstream bitrates accordingly on full 64-camera sites.
Can I run two monitors with different layouts?
Yes. The 32- and 64-channel models drive HDMI1/VGA1 and HDMI2/VGA2 as separate output groups, with HDMI reaching 4K (3840 × 2160) at 60 Hz. The main screen splits up to 32 windows on the 32E-IQ, corridor mode is available, and the recorder handles 32 concurrent playback channels, 16 synchronized locally.
How do I give my customer remote access?
The recorder supports P2P, DDNS, HTTP/HTTPS and NTP, so remote viewing works without a fixed IP line. Up to 128 remote users can log in; supported browsers are Chrome 45+, Edge 79+, Firefox 52+ and IE10/11. Outgoing bandwidth matches intake — 384 Mbps smart off — leaving room for several remote viewers.
How many 4K cameras can the NVR504-32E-IQ or 64E-IQ really record?
The limit is bandwidth, not channel count. At a typical 8 Mbps per 4K camera, 384 Mbps takes 48 cameras with smart analysis off, and 200 Mbps takes 25 with it on; the 32E-IQ can therefore record 32 4K cameras only with recorder smart analysis off, or with each camera at about 6 Mbps. For live view and playback at full resolution the decoder handles 8 × 4K@30 (6 with smart on), so large split screens use sub-streams.
How many days will the NVR504-E-IQ keep with four drives in RAID 5?
RAID 5 uses one disk's worth of space for parity, so four 24 TB disks give about 72 TB usable instead of 96 TB. At 4 Mbps per camera, continuous, that is about 104.2 days for 16 cameras, 52.1 days for 32 and 26.0 days for 64; with four 8 TB disks (24 TB usable) divide these by three. Motion or smart-event recording and Ultra 265 extend this.
Can I record Hikvision, Dahua or other non-Uniview cameras on the NVR504-E-IQ?
The datasheet expects them: it gives smart limits for 'UNV and third-party brand' normal cameras, for example SIP by the recorder on up to 8 channels of 2 MP and UMD on up to 16 channels of 2 MP. Third-party cameras are normally added over ONVIF, but ONVIF is not named in the datasheet protocol list, so send us your camera models and we will confirm before you order. Face snapshot search, AcuSearch and AcuTrack across all channels need Uniview smart cameras.
Which hard drives should I buy for the NVR504-E-IQ, and can I mix sizes?
Use 3.5-inch SATA surveillance-grade drives, made for 24/7 writing, up to 24 TB each; the 24 TB maximum assumes a room at or below 40 °C. Without RAID you can mix sizes and group disks with Disk Group. In RAID 5 every member counts only as much as the smallest disk, so buy four identical drives and keep one spare on site to replace a failed one quickly.
What are the two network ports on the NVR504-E-IQ for?
Both are gigabit RJ45 ports and support three modes: multi-access (two separate networks with two IP addresses), load balance and network fault tolerance. The common setup is multi-access: one port on the camera switches, the other on the office network or router for the client software and phone app, so remote viewers never reach the cameras directly.
Does the NVR504-E-IQ lose footage if the network between cameras and recorder goes down?
Not if the cameras support it: the recorder has ANR, which lets a camera with a memory card keep recording during the outage and then fills the gap on the recorder's disks when the link returns. Fit microSD cards in the cameras on long or wireless links. The recorder also raises Network Disconnected and Video Loss alarms so you know the link dropped.
Ordering questions — samples, shipping, payment, lead time and genuine stock — are answered once on our FAQ page.
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