U21 SRX-Pro NVR Server

Part No.U21

Features

1U rack-mountable industrial-grade chassis
Up to 48 video channels (IP or analog)
Storage expandable to 4 HDD (80TB, 20TB each)
DP++ (4K) and HDMI (4K) ports for local live viewing
Dual 10/100/1000 Gigabit network
Embedded Windows 11 IoT LTSC OS on m.2 SSD drive for stability
Optional TCP/IP 4 sensors inputs, 4 outputs (via UIO8 V2)

The SRX-Pro U21-Series Industrial NVR Server is built for enterprise video surveillance, supporting up to 48 IP camera channels in a compact 1U rackmount chassis. Powered by an Intel 13th Gen i5 processor, the U21 delivers reliable performance for continuous high-resolution video recording and management. Equipped with four front-accessible drive bays, each supporting up to 20TB, the system offers a total raw storage capacity of 80TB, configured in JBOD for flexible storage utilization. The U21 features an integrated 24-port PoE switch, simplifying deployment by powering IP cameras directly—no external switch required. This built-in capability streamlines installation, reduces equipment needs, and enhances overall system efficiency. Dual Gigabit NICs provide flexible network segmentation, allowing camera traffic to remain isolated from corporate or Internet networks.

Hardware Configuration

Chassis Type	U21 Series Rack Mount, 3U
Physical dimensions (WxDxH inches/mm)	17¼ x 22 11/16 x 1¾” (438 x 576 x 44 mm)
Min. Weight (lbs/kg)	22 lbs / 10 kg
Motherboard Type	Industrial, server grade
CPU	Intel-i5 (13th gen)
RAM	16GB
Graphic Card	1x HDMI (4K), 1x Display Port (4K)
On-board Audio Card	Line In/Line Out/Mic
Connectivity (LAN/WAN)	2x 1GB/sec
DVD/CD	No
Keyboard & Mouse	Yes
Number of Control Outputs / Sensor Inputs	NA (upgradable to 64 / 64 using 16 x UIO8 V2)
Operating System	Windows 11 IoT LTSC 2024
Operating System Drive	m.2 SSD
Power Supply	600W
Power Input	100-240 VAC, 50-60 Hz, (auto switch)
PoE, built-in	24 Ch PoE, ≤240W
Power Consumption	420W
Operating Temperature	20℃ - 25℃ / 68℉ - 77℉
Relative Humidity	< 80%, non-condensing
Analog Video Support	Yes, via LD16
Built-in PoE	No

Video Storage Configuration

Maximum Number of HDD	4 (i3-approved WD models only)
Hard drive capacity requiements	Must use the same capacity hard drives
Maximum Hard Drive Capacity, unformatted	80TB (i3-approved WD models only)

Video Configuration

IP Camera Inputs (max)	1 ~ 48 (Max combination of licences Analog or IP 64 channels)
Analog Camera Inputs (max) via HR16	1 ~ 48 (Max combination of licences Analog or IP 64 channels)
360° Fisheye IP Inputs (Max)	≤number of purchased IP licenses
Maximum Resolution/FPS @ 64 channels	Main: 8MP @ 20fps Sub: D1 @ 20fps
Backup Video / Snapshot Format	i3 Encrypted, AVI, BMP, or JPEG
Compression Types	Selectable h.265 / h.264 / MPEG4 / MJPEG
Screen Display	1, 4, 9, 10, 13, 16, 25, 36, 64 (selectable)
Third Party IP Camera Support	www.i3international.com/partners

Software Configuration

Max. number of PACDM channels. Serial / TCP/IP	8 Serial / 16 TCP/IP (Optional)
Remote Viewing	Video Pilot Client (thick client), i3Host/CMS Web Video Streaming (thin client), CMS Mobile (iOS/Android)
Pre-alarm/Post-alarm Recording	Yes
Recording Modes	Time/Date - with time zone ref., sensor, motion, continuous, analytics
Max. number of dDisplay channels	2 (Optional)
Max. number of Remote connections	50
CMS Health Monitoring	Optional

Certifications	UL / ULc / FCC / CE
Warranty	3-year parts, 1 year labor

U21 SRX-Pro NVR Server

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