UNV NVR502-16B 16-Channel 2-HDD 4K Network Video Recorder

16-Channel 2-HDD Network Video Recorder • No Built-In PoE
UNV NVR502-16B 16-Channel 2-HDD 4K Network Video Recorder
The UNV NVR502-16B is a professional 16-channel network video recorder with 320Mbps incoming bandwidth, 4K HDMI output, two SATA hard-drive bays, up to 16MP recording, RAID 1, ANR, smart-event support, dual Gigabit network ports, ONVIF integration, alarm I/O, and 16-channel synchronous playback. This recorder does not include built-in PoE camera ports and requires an external PoE switch.
16CH
IP Camera Input
No PoE
External Switch Required
320Mbps
Incoming Bandwidth
2 Bays
SATA Storage
4K
HDMI Output
Important PoE Notice
The NVR502-16B does not have built-in PoE ports. IP cameras must be connected through a separate PoE switch, network switch with PoE, PoE injectors, fiber uplinks, or other properly designed network infrastructure. Confirm total camera bitrate, PoE power budget, switch uplink capacity, VLAN design, and network topology before ordering.
Flexible Recorder for Structured Network Deployments
Because this model does not include built-in PoE, it is especially suitable for systems where cameras connect through managed PoE switches, multiple network closets, fiber uplinks, VLANs, or an existing enterprise network. This design gives installers greater flexibility than a recorder with fixed onboard PoE ports.
Key Features
16-Channel IP Recording
Supports up to 16 IP camera channels for professional surveillance systems.
External PoE Switch Required
This model has no built-in PoE camera ports. Cameras must connect through external PoE infrastructure.
320Mbps Incoming Bandwidth
Provides substantial network capacity for higher-resolution cameras and multi-camera systems.
Two SATA HDD Bays
Supports disk groups, redundant storage, and RAID 1.
Up to 16MP Recording
Records compatible camera streams at resolutions up to 16 megapixels.
Dual Gigabit Network Ports
Two Gigabit Ethernet interfaces support flexible network design and segmentation.
Feature Overview
✓ 16-channel IP camera input
✓ No built-in PoE — external PoE switch required
✓ 320Mbps incoming / 160Mbps outgoing bandwidth
✓ Ultra 265 / H.265 / H.264
✓ Up to 16MP recording resolution
✓ 4K HDMI and independent VGA output
✓ 16-channel synchronous playback
✓ Two SATA interfaces
✓ Up to 16TB per HDD under supported conditions
✓ Disk groups, redundant storage, and RAID 1
✓ Two Gigabit Ethernet interfaces
✓ ONVIF Profiles S / G / T and RTSP
✓ ANR storage-reliability technology
✓ Camera-side smart analytics and search
✓ 8 alarm inputs / 2 alarm outputs
✓ RCA two-way audio
Product Highlights
Model
NVR502-16B
Recorder Type
16-channel, 2-HDD, 1U network video recorder
Built-In PoE
No — external PoE switch required
Incoming / Outgoing Bandwidth
320Mbps / 160Mbps
Recording Resolution
Up to 16MP
Video Output
1 HDMI up to 4K / 1 VGA up to 1080p
Synchronous Playback
16 channels
HDD Bays
2 SATA interfaces
HDD Capacity
Up to 16TB per HDD under supported conditions
Storage Features
Disk group, redundant storage, RAID 1
Network
2 × Gigabit RJ45
Alarm I/O
8 inputs / 2 outputs
Power
12V DC / 3A
Dimensions
380 × 315 × 53 mm
Weight
≤2kg without HDDs
Hard Drives Are Not Automatically Included
Unless the listing specifically states otherwise, surveillance hard drives are sold separately.
Installation Tip
Plan this system around the external PoE switching infrastructure. Confirm total camera bitrate, switch PoE budget, uplink speed, VLAN configuration, fiber requirements, storage retention, UPS capacity, and remote-viewing upload speed.
3-Year UNV Manufacturer Warranty
This product includes a three-year UNV manufacturer equipment warranty when purchased through NSI Security, subject to applicable warranty terms, eligibility, exclusions, serial-number verification, and return procedures.
Note: Specifications, HDD limits, decoding capacity, analytics, bandwidth, and compatibility are subject to firmware, region, and manufacturer changes. This recorder has no built-in PoE ports. Verify current manufacturer documentation and the required external PoE network design before ordering.