NVR / Recorders › NVR-104S3-P4-ECO / 108S3-P8-ECO
UniarchS3-P-ECO Series · 1× SATA HDD
4/8-Channel PoE Network Video Recorder · S3-P-ECO Series
NVR-104S3-P4 / 108S3-P8-ECO
4 / 8-channel PoE network video recorder — built-in 4/8-port PoE switch, Ultra 265 compression, records cameras up to 6MP, works with third-party ONVIF cameras.
6MP · max recordingUltra 265 · low storage4/8× PoE · built-in, no switch needed1× SATA · up to 6 TBONVIF · S / G / T profiles21 languages · local interface
Choose your size — two models on this page
Rule of thumb: count your cameras, then match the PoE ports — the 104S3-P4-ECO powers 4 cameras straight from the recorder; pick the 108S3-P8-ECO for 8. Highlighted rows in the spec table below show every difference between the two.
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The Uniarch S3-P-ECO Series is a PoE network video recorder offered in two sizes: NVR-104S3-P4-ECO (4-ch, 4 built-in PoE ports) and NVR-108S3-P8-ECO (8-ch, 8 built-in PoE ports). Both record cameras up to 6MP with Ultra 265 / H.265 / H.264 compression, output simultaneously over HDMI and VGA, and accept third-party cameras via ONVIF (Profile S, G, T). One SATA bay takes a hard disk up to 6 TB; the local interface is available in 21 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.
Small shops & homesThe 4-ch 104S3-P4-ECO has 4 PoE ports built in — plug 4 cameras straight into the recorder, no separate PoE switch or injector needed.
Growing businessesThe 8-ch 108S3-P8-ECO steps up to 8 built-in PoE ports — more cameras powered from the same box as the site grows.
One cable per cameraPoE means a single Ethernet cable carries both power and video to each camera — no extra power adapters or wiring runs.
Remote viewing on phoneP2P protocol built in — the owner checks the shop from a phone app without a fixed IP or network skills.
Local-language interface21 GUI languages including Spanish (Latin America), Portuguese (Brazil) and French — your customer operates it in their own language.
Mixed-brand projectsONVIF Profile S/G/T means existing third-party IP cameras keep working over the general network port — no need to replace the whole site.
Not the right pick if you need…
- 4K HDMI output — this ECO model outputs Full HD (1920×1080) max over HDMI/VGA, and records up to 6MP per channel
- A second hard disk or RAID — this series has a single SATA bay (up to 6 TB)
- Gigabit uplink — the network interface is 10/100M (fine for 8 cameras at 64 Mbps total incoming bandwidth)
- Alarm in/out wiring for sirens or sensors — the rear panel has no dedicated alarm terminal block
- Audio input — it has a 3.5mm audio output only (camera-side mics still record)
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Key Features
Complete list from the official datasheet.
Support Ultra 265 / H.265 / H.264 video formats
4 / 8-channel input
Plug & Play with 4/8 independent PoE network interfaces
Third-party IP cameras supported with ONVIF conformance: Profile S, Profile G, Profile T
Support 1-ch HDMI, 1-ch VGA
HDMI and VGA simultaneous output
Up to 6MP resolution recording
Support cloud upgrade
Powers your cameras. Saves your disk.
The two capabilities that decide whether an entry PoE NVR feels cheap or smart.
POE BUILT-IN
Camera power and video, one cable
4 or 8 independent PoE ports (IEEE 802.3af/at) built into the recorder — up to 30 W per port, 30 W total on the 104S3-P4-ECO or 45 W total on the 108S3-P8-ECO. No separate PoE switch or power injector to buy.
ULTRA 265
Half the storage, same image
Ultra 265 compression cuts recording size dramatically versus H.264 — on the same 6 TB disk you keep footage for weeks longer.
Which size fits your project?
Bars show camera capacity per model — that's also how many built-in PoE ports it has. Click the model buttons above to switch — the spec table highlights every other difference.
NVR-104S3-P4-ECOlive view split 1/4 · 4 PoE ports
4cameras
NVR-108S3-P8-ECOlive view split up to 9 · 8 PoE ports
8cameras
Who uses it, where it goes and how to set it up
Written for the Uniarch NVR-104S3-P4-ECO and NVR-108S3-P8-ECO from the official datasheet: 4 or 8 channels with 4 or 8 built-in PoE ports, a 30 W or 45 W total PoE budget, 64 Mbps incoming bandwidth, recording up to 6 MP, 1 SATA bay up to 6 TB.
Who it is for
- Budget kits for homes and small shops (104S3-P4-ECO) — Four ordinary fixed cameras on four PoE cables: four cameras at about 6 W use 24 W of the 30 W budget. The right box when the cameras are simple bullets or turrets, not PTZs.
- Small businesses with up to 8 low-power cameras (108S3-P8-ECO) — 8 channels, live view up to 9 screens and 8-channel synchronous playback. The 45 W budget means about 5.6 W per port when all eight are used, so check each camera's maximum power before you promise eight on PoE.
- Installers handing over to non-technical owners — 21 interface languages including Spanish (Latin America), Portuguese (Brazil) and French, plus alert alarms for disk offline, disk abnormal, network disconnected, IP conflict and illegal access, so the owner is told when something is wrong.
- Not the right pick for — PTZs, cameras with strong IR or warm light on every port, 4K cameras (recording stops at 6 MP), a second disk, or a gigabit network port. For more PoE power the non-ECO NVR-104S3-P4 / 108S3-P8 gives 50 W / 75 W.
Where and how to install the recorder
- Central spot, PoE runs under 100 m — Put the recorder near the middle of the camera layout so every Cat5e or Cat6 copper run is under 100 m. Long runs also lose some power in the cable, which matters more on a 30 W or 45 W budget.
- Cool, ventilated place for the disk — The ECO datasheet notes that the maximum disk capacity varies with environment temperature, within a working range of -10 °C to 55 °C. Keep it out of hot ceilings and closed boxes in the sun, leave air around the 190 × 195 × 42 mm case and do not stack a router on it.
- Power adapter and UPS — Use the supplied adapter, DC 48 V / 1 A (104S3-P4-ECO) or DC 48 V / 1.35 A (108S3-P8-ECO); it feeds the recorder and every PoE camera. A small UPS keeps recording through short power cuts and protects the disk from sudden shutdowns.
- Fit a surveillance disk before mounting — One SATA surveillance-grade drive (rated for 24/7 writing) up to 6 TB. Fit it on the bench, format it in the recorder, then put the unit in a locked cabinet or shelf so the recorder and its footage cannot be carried away.
- Protect outdoor cable runs — For cameras on poles or outside walls, add an earthed Ethernet surge protector at the building entry. A lightning surge on one cable can otherwise damage the PoE ports of the whole recorder.
Planning table: 104S3-P4-ECO or 108S3-P8-ECO
Recording side, both models are the same: 64 Mbps incoming, 6 MP maximum, one 6 TB bay. The difference that decides the choice is PoE: 30 W total for 4 ports or 45 W total for 8 ports. With typical 6 W cameras the 104S3-P4-ECO powers all 4 ports, while the 108S3-P8-ECO powers 7 and the eighth camera needs its own adapter or a lower-power model.
| NVR-104S3-P4-ECO | NVR-108S3-P8-ECO | |
|---|---|---|
| IP channels / built-in PoE ports | 4 / 4 | 8 / 8 |
| Incoming bandwidth (all cameras together) | 64 Mbps | 64 Mbps |
| HDD bays × max capacity | 1 × 6 TB | 1 × 6 TB |
| PoE budget / per-port max | 30 W / 30 W | 45 W / 30 W |
| Average PoE per port with all ports used | 7.5 W | ≈ 5.6 W |
| Cameras at 6 W each within the PoE budget | 4 (24 W) | 7 (42 W) |
| Decoding (live view / playback) | 2×6MP@30, 4×5MP@25, 4×4MP@25, 4×1080P@30 | 2×6MP@30, 4×5MP@25, 4×4MP@25, 6×1080P@30, 8×720P@30 |
| Live view split / sync playback / concurrent playback | 1/4 · 4-ch · 8-ch | 1/4/6/8/9 · 8-ch · 16-ch |
| Retention on 6 TB, all channels at 2 Mbps (days) | ≈ 69.4 | ≈ 34.7 |
| Retention on 6 TB, all channels at 4 Mbps (days) | ≈ 34.7 | ≈ 17.4 |
- Pick the 104S3-P4-ECO for exactly 4 ordinary fixed cameras: 4 × 6 W = 24 W leaves 6 W of margin in the 30 W budget.
- Pick the 108S3-P8-ECO for 5 to 8 cameras whose maximum power adds up to 45 W or less, for example eight cameras of 5 W (40 W).
- Planning a PTZ or cameras with strong IR or warm light? Choose the non-ECO NVR-104S3-P4 (50 W) or NVR-108S3-P8 (75 W) instead.
Retention = disk TB × 10^12 ÷ (cameras × bitrate ÷ 8 × 86400 s), continuous recording, no overwrite reserve. 2 Mbps and 4 Mbps are assumed averages for 2 MP and 4 MP cameras in H.265 or Ultra 265; 5 W and 6 W are assumed camera draws, check the real maximum power in each camera's datasheet. Other values are from the official ECO datasheet; the 50 W / 75 W figures are from the non-ECO S3-P datasheet.
Full Specifications
Complete official specifications from the manufacturer's datasheet (technical values in English).
Highlighted rows differ between the two models:NVR-104S3-P4-ECO · 4-chNVR-108S3-P8-ECO · 8-ch
Decoding
| Decoding Format | Ultra 265, H.265, H.264 |
| Decoding Capability | 104S3-P4-ECO · 2×6MP@30, 4×5MP@25, 4×4MP@25, 4×3MP@25, 4×1080P@30108S3-P8-ECO · 2×6MP@30, 4×5MP@25, 4×4MP@25, 4×3MP@25, 6×1080P@30, 8×720P@30 |
| Decoding Capability Description | The resolution of each channel cannot exceed 4000 pixels in length and 3000 pixels in width |
| Audio Compression | G.711A, G.711U |
Network
| Incoming Bandwidth | 64 Mbps |
| Outgoing Bandwidth | 48 Mbps |
| Max Users Can Be Added | 32 |
| Remote Users | 128 |
| Protocols | TCP/IP, P2P, UPnP, DHCP, HTTP, HTTPS, DNS, DDNS, SMTP, RTSP, IPv4 |
| Browser (Plugin) | IE10, IE11, Chrome 45+, Edge 79+, Firefox 52+ |
Video/Audio Input
| IP Video Input | 104S3-P4-ECO · 4-ch108S3-P8-ECO · 8-ch |
Video/Audio Output
| Video Output | Support 1-ch HDMI, 1-ch VGA, HDMI and VGA simultaneous output |
| HDMI 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 |
| 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 |
| 3.5mm Audio Output | 1-ch |
| Liveview Display | 104S3-P4-ECO · 1/4108S3-P8-ECO · 1/4/6/8/9 |
| Corridor Mode Screen | 104S3-P4-ECO · 3/4108S3-P8-ECO · 3/4/5/7/9 |
Recording
| Recording Resolution | 6 MP / 5 MP / 4 MP / 3 MP / 1080P / 960P / 720P / D1 / 2CIF / CIF |
| Num of Concurrent Playback | 104S3-P4-ECO · 8-ch108S3-P8-ECO · 16-ch |
| Synchronous Playback (Local) | 104S3-P4-ECO · 4-ch108S3-P8-ECO · 8-ch |
Smart Features
| VCA Detection by IPC | SIP (Intrusion Detection, Cross Line Detection, Enter Area, Leave Area), Ultra Motion Detection (UMD) |
| VCA Search | Behavior Search |
| Smart by IPC | Total 4-ch (SIP and UMD supports channel 1-4, Alarm only, no image) |
Alarm
| General Alarm | Auto Tracking, Motion Detection, Human Body Detection, Video Loss, Alarm Input, Audio Detection |
| Alert Alarm | IP Conflict, Network Disconnected, Disk Offline, Disk Abnormal, Illegal Access |
Local Interface
| GUI Language | 21 languages: Chinese, English, Vietnamese, Thai, Turkish, Spanish (Latin America), Portuguese (Brazil), Spanish, Portuguese, French, German, Italian, Dutch, Polish, Czech, Hungarian, Slovak, Russian, Hebrew, Arabic, Ukrainian |
Hard Disk
| SATA | 1 SATA Interface |
| Capacity | Up to 6 TB for each HDD (the maximum HDD capacity varies with environment temperature) |
External Interface
| Network Interface | 1 × RJ45 10 M/100 M self-adaptive Ethernet |
| USB | Rear panel: 2 × USB 2.0 |
| Power Supply | 104S3-P4-ECO · DC 48 V / 1 A108S3-P8-ECO · DC 48 V / 1.35 A |
PoE
| PoE Interface | 104S3-P4-ECO · 4 × RJ45 10 M/100 M self-adaptive Ethernet Interface108S3-P8-ECO · 8 × RJ45 10 M/100 M self-adaptive Ethernet Interface |
| Max Power | 104S3-P4-ECO · Max 30 W for single port, Max 30 W in total108S3-P8-ECO · Max 30 W for single port, Max 45 W in total |
| Supported Standard | IEEE 802.3at, IEEE 802.3af |
General
| Working Temperature | -10 °C to 55 °C (14 °F to 131 °F) |
| Working Humidity | ≤ 90% RH (non-condensing) |
| Power Consumption (without HDD) | ≤ 9 W |
| Weight (without HDD) | ≤ 1 kg (2.2 lb) |
| Dimensions | 190 mm × 195 mm × 42 mm (7.5" × 7.7" × 1.6") |
Certification
| Certification | CE; FCC; 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 | 190 × 195 × 42 mm (7.5" × 7.7" × 1.6") |
| Weight (without HDD) | ≤ 1 kg (2.2 lb) |
| Power supply | DC 48 V / 1 A (104S3-P4-ECO) · DC 48 V / 1.35 A (108S3-P8-ECO) |
| Consumption (without HDD) | ≤ 9 W |
Rear panel — all interfaces (4-port model above, 8-port model below)
4/8 Channel PoE NVR FAQ — NVR-104S3-P4-ECO/108S3-P8-ECO
How much PoE power do the ECO models provide?
The 104S3-P4-ECO has 4 independent PoE ports with a 30W total budget (about 7.5W average per camera); the 108S3-P8-ECO has 8 ports with 45W total (about 5.6W average). A single port can still deliver up to 30W (IEEE 802.3af/at). Size the load to typical fixed cameras.
What resolution and how many channels does it record?
The 104S3-P4-ECO records 4 IP cameras and the 108S3-P8-ECO records 8, at up to 6MP per channel. Incoming bandwidth is 64 Mbps. Concurrent playback covers 8 channels on the 4-channel model and 16 on the 8-channel model, with synchronous local playback of 4 or 8 channels.
What hard drive can I put in and how long will it last me?
One SATA bay accepts a surveillance hard drive up to 6 TB (maximum capacity varies with ambient temperature). Ultra 265 compression cuts recording size dramatically versus H.264, so the same 6 TB disk keeps footage for weeks longer than an H.264 recorder would.
What alarms and detections does it support?
General alarms include motion detection, human body detection, audio detection, video loss and auto tracking, plus camera-side SIP rules (intrusion, cross line, enter/leave area) and Ultra Motion Detection on up to 4 channels. System alerts cover IP conflict, network disconnect, disk offline or abnormal, and illegal access.
Can I connect two monitors?
Yes — 1 HDMI and 1 VGA output work simultaneously, both up to 1920×1080 at 60 Hz, plus a 1-channel 3.5mm audio output. The 108S3-P8-ECO shows up to 9 windows in live view, with corridor mode layouts for vertical scenes such as aisles and corridors.
How do remote users connect?
Via P2P, DDNS, HTTP/HTTPS or RTSP — up to 128 remote users, with 32 local user accounts and 48 Mbps of outgoing bandwidth. Browser access works with Chrome 45+, Edge 79+, Firefox 52+ and IE10/11 via plugin, so a distributor can support clients from any office PC.
Can the NVR-108S3-P8-ECO power eight 4 MP IR cameras from its PoE ports?
Only if their maximum power adds up to 45 W or less. Eight cameras at 5 W (40 W) fit; eight at 6 W (48 W) exceed the budget, so the eighth camera needs its own 12 V adapter or the non-ECO NVR-108S3-P8 with 75 W. Recording is not the problem: eight 4 MP cameras at 4 Mbps use 32 Mbps of the 64 Mbps incoming bandwidth. Check the maximum power line in each camera's datasheet, not the typical value, because IR at night raises the draw.
Can I plug a small PTZ into one port of the NVR-104S3-P4-ECO?
Technically one port can give up to 30 W, but on the 104S3-P4-ECO 30 W is also the total for all 4 ports. A 25 W PTZ would leave only 5 W for the other three cameras, which is not enough. Power the PTZ from its own adapter (it still records on one of the 4 channels), or choose the non-ECO NVR-104S3-P4 with a 50 W budget.
Will Hikvision, Dahua or other ONVIF cameras work on the PoE ports of the NVR-108S3-P8-ECO?
For video, usually yes: the datasheet lists ONVIF Profile S, G and T, and the ports supply standard IEEE 802.3af/at PoE, so a compliant camera gets power and records. Smart events are different: the datasheet supports intrusion, line crossing and UMD from the camera on channels 1 to 4 only, as alarm without image, and only for cameras that send these events. Send us the third-party models before ordering and we will confirm what works.
Can I mix Uniarch Uho Wi-Fi cameras with PoE cameras on the NVR-104S3-P4-ECO?
Do not plan on it without checking. The recorder has no Wi-Fi and its datasheet does not list Uho cameras; Uho models are made to work with the phone app and their own microSD card. A Wi-Fi camera could only reach the NVR through the router and the 10/100 Mbps network port and would still use one of the 4 channels. Tell us the exact Uho model and we will confirm; otherwise keep Uho cameras on the app and use PoE cameras on the recorder.
Why does the ECO datasheet say the maximum disk capacity depends on temperature, and which disk should I buy?
Larger drives run hotter, and this compact 190 × 195 × 42 mm case has limited room for cooling, so the 6 TB maximum assumes a reasonable room temperature. In a hot room or closed cabinet, a 2 TB to 4 TB surveillance-grade SATA drive is the safer choice and the unit should get free air around it. Typical retention on 6 TB with 4 cameras at 4 Mbps is about 34.7 days; a 4 TB disk keeps two thirds of that.
ECO or non-ECO: what do I lose with the NVR-108S3-P8-ECO compared with the NVR-108S3-P8?
Mainly PoE power: 45 W total instead of 75 W on the 8-port model, and 30 W instead of 50 W on the 4-port model, with a smaller DC 48 V adapter. Channels, 64 Mbps bandwidth, 6 MP recording, decoding, the 6 TB bay and the per-port 30 W limit are the same in both datasheets. If all your cameras are low-power fixed models the ECO is enough; for PTZs or strong IR or warm-light cameras on most ports, take the non-ECO version.
Ordering questions — samples, shipping, payment, lead time and genuine stock — are answered once on our FAQ page.
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