RC-NR21P4-4D 4-Channel 4K AI NVR with 4-Port PoE

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RC-NR21P4-4D 4-Channel 4K AI NVR with 4-Port PoE

Name: RC-NR21P4-4D 4-Channel 4K AI NVR with 4-Port PoE
Brand: Redcore
SKU: RC-NR21P4-4D
Price: 99.00 USD
Availability: InStock

Vendor: Redcore

Type: NVR

SKU: RC-NR21P4-4D

Shipping calculated at checkout.

All prices are subject to change without notice.

Available in stock

4K AI Network Video Recorder

RC-NR21P4-4D 4-Channel 4K AI NVR

Four built-in PoE ports and 4K deep-learning recording in a compact, low-power box.

Description

A compact single-box recorder for small camera systems. Connect up to four IP cameras directly to the recorder, capture 8 MP (4K) per channel with H.265+ compression, and view footage in 4K over HDMI with a simultaneous VGA output.

4 IP camera inputs with 4 independent PoE ports (IEEE 802.3 af/at, ≤ 50 W)
Records up to 8 MP (4K) per channel · 40 Mbps incoming bandwidth
Independent HDMI (up to 4K) and VGA outputs
Motion Detection 2.0 — human & vehicle target classification
H.265+ compression saves 50–70% storage versus H.264
Single 3.5″ SATA bay (up to 8 TB) · free cloud mobile app

Product Overview

The RC-NR21P4-4D is a 4-channel network video recorder with four built-in PoE ports, powering and connecting cameras over a single Ethernet run with no separate switch. It records each channel at up to 8 MP (4K) with 40 Mbps incoming bandwidth, runs deep-learning Motion Detection 2.0 for human and vehicle classification, and supports two-way audio and third-party ONVIF cameras. A single SATA bay holds up to 8 TB, and the compact low-power design suits homes and small offices.

Professional & Reliability

Compact chassisSmall 320 × 240 × 48 mm 1U enclosure for tight installs.

Wide operating range-10 °C to +55 °C, 10–90% humidity.

Low power48 VDC / 1.35 A supply, ≤ 10 W without HDD and PoE off.

HD Video Output

4K HDMIHDMI up to 3840 × 2160 for crisp 4K live view.

Simultaneous VGAIndependent VGA output up to 1920 × 1080.

H.265+ codecH.265+ / H.265 / H.264+ / H.264, up to 8-ch @ 1080p decode.

Storage & Playback

Single SATA1 × SATA bay, up to 8 TB for extended retention.

4-ch playback4-channel synchronous playback with instant & smart playback.

Quota managementPer-channel HDD quota allocation.

Smart Function

Motion Detection 2.0Deep-learning human & vehicle classification cuts false alarms.

VCA analyticsLine-crossing and intrusion detection with VCA alarm recording.

Two-way audioTalk back through compatible cameras or intercom points.

Network & PoE Access

4 PoE ports4 × RJ-45 10/100 Mbps self-adaptive PoE, IEEE 802.3 af/at, ≤ 50 W.

10/100 uplink1 × RJ-45 10/100 Mbps self-adaptive network interface.

Remote & ONVIFFree cloud mobile app (P2P), web access and ONVIF third-party cameras.

Additional Information

Full technical specification matrix for the RC-NR21P4-4D.

Video / Audio Input
IP Video Input	4-ch, up to 8 MP
Two-Way Audio Input	1-ch, RCA (2.0 Vp-p, 1 kΩ)
Incoming Bandwidth	40 Mbps
Outgoing Bandwidth	80 Mbps
Video / Audio Output
HDMI Output	1-ch, 4K (3840 × 2160)/30 Hz, 2K (2560 × 1440)/60 Hz, 1920 × 1080/60 Hz, 1600 × 1200/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz
VGA Output	1-ch, 1920 × 1080/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz
Audio Output	1-ch, RCA (Linear, 1 kΩ)
Frame Rate	Main stream: 50 fps (P) / 60 fps (N); Sub-stream: 50 fps (P) / 60 fps (N)
Decoding & Playback
Decoding Format	H.265+ / H.265 / H.264+ / H.264
Recording Resolution	8 MP / 6 MP / 5 MP / 4 MP / 3 MP / 1080p / UXGA / 720p / VGA / 4CIF / DCIF / 2CIF / CIF / QCIF
Decoding Capability	2-ch @ 4K or 8-ch @ 1080p
Synchronous Playback	4-ch
Playback	Instant playback, smart search, smart playback
AI / Smart Features
Motion Detection 2.0	Human and vehicle target classification
VCA Detection	Line crossing, intrusion detection; VCA alarm recording
Storage Management	HDD quota allocation per channel
Network
Network Interface	1 × RJ-45 10/100 Mbps self-adaptive Ethernet interface
Network Protocols	TCP/IP, DHCP, Cloud P2P, DNS, DDNS, NTP, SMTP, NFS, iSCSI, UPnP™, HTTPS
Third-Party Cameras	ONVIF-compatible
Remote Access	Free cloud mobile app (P2P), web browser access
PoE
PoE Ports	4 × RJ-45 10/100 Mbps self-adaptive
PoE Standard	IEEE 802.3 af/at
Max PoE Power	≤ 50 W
Storage
HDD	1 × SATA interface (1 HDD)
Capacity	Up to 8 TB per disk
External Interface
USB	1 × USB 2.0 (front) + 1 × USB 3.0 (rear)
General
Power Supply	48 VDC, 1.35 A
Consumption	≤ 10 W (without HDD, PoE off)
Working Temperature	-10 °C to +55 °C (14 °F to 131 °F)
Working Humidity	10% to 90%
Chassis	1U
Dimensions (W × D × H)	320 × 240 × 48 mm (12.4" × 9.4" × 1.9")
Weight	≤ 1.18 kg (2.6 lb) without HDD

Download

Get the complete RC-NR21P4-4D specification sheet as a printable PDF for quotes, submittals and installation planning.

⇩ Download spec sheet (PDF)

PDF · RC-NR21P4-4D Specification Sheet

Shipping & Rerturns

📦 Shipping Policy

Processing Time: Orders ship within 1–2 business days.
Shipping Methods: We use reliable carriers like UPS, FedEx, and USPS.
Tracking: All orders include tracking.
Free Shipping: Available on select products or orders over $200 (if applicable).
Expedited Shipping: Options available at checkout.

🔄 Return Policy

Return Window: Items can be returned within 15 days of delivery.
Conditions: Products must be unused and in original packaging.
Non-Returnable: Assembled racks, clearance items, and custom orders are final sale.
Process: Contact us at [your email] to request a return authorization.
Shipping Costs: Return shipping is the buyer’s responsibility unless the item was defective or incorrect.

Payment & Security

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.