i-PRO WJ-NU101K 4-Channel PoE+ Network Video Recorder

Overview

The WJ-NU101K is a compact 4-channel network video recorder with an integrated PoE+ switch — meaning your power and data run on a single cable run to each connected camera. This solves the installation headache of running separate PoE injectors or power supplies for small-to-medium surveillance sites (retail floors, office lobbies, warehouse receiving areas). The unit records up to 4K/8MP sources in both H.265 (roughly 50% smaller files than H.264) and H.264, supporting flexible codec trade-offs depending on your storage budget and compatibility requirements. With support for up to 24 TB internal HDD capacity, the WJ-NU101K handles 24/7 recording across all four channels without offsite replication.

Compatibility

The WJ-NU101K works with any i-PRO series network camera, plus third-party cameras that conform to ONVIF NVT standards — meaning you are not locked into a single brand ecosystem. Compatible resolutions include 4K (3840×2160), 1080p (1920×1080), 720p (1280×720), and lower resolutions down to QVGA (320×240), giving you flexibility to mix camera generations on the same recorder. Audio support includes AAC-LC and G.711 formats for environments requiring voice capture or two-way intercom integration. The PoE+ (802.3at) switch output delivers up to 30 watts per port — sufficient for most fixed and PTZ cameras without secondary power adapters.

Installation Notes

The WJ-NU101K includes a DC 54V/1.67A AC power adapter; no separate UPS or redundant power supply is built in — plan accordingly for mission-critical deployments. The unit measures 340 mm (W) × 44 mm (H) × 230 mm (D) and supports both wall-mount and 1U rack-mount configurations, fitting standard 19-inch server racks. Camera control features (pan/tilt/zoom, focus, brightness adjustment, up to 256 preset positions) depend on the connected camera model — verify your camera supports these functions before relying on preset-based workflows. Pre-alarm recording buffers up to 15 seconds of video before an event trigger, useful for capturing the seconds before motion or alarm activation.