REOLINK 36CH Network Video Recorder for Home Security Camera System, No PoE Port, Requires Reolink PoE Switch, Integrated O/I Alarm System, Up to 48TB Storage, No HDD Included, RLN36

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ONLY WORK WITH REOLINK IP CAMERAS: Work perfectly with all Reolink PoE 12MP/4K/5MP/4MP cameras, such as RLC-1212A, RLC1224A, RLC-823A 16X, Trackmix PoE, Duo 2 PoE, 823A, 811A, 810A, 820A, 842A, 510A, 520A, Doorbell PoE, E1 Outdoor cameras. Manage up to 36 Reolink IP cameras simultaneously easily.
EXPAND YOUR SYSTEM WITH POE SWITCHES: This product has no PoE ports and does not provide PoE functionality. To build your system, connect up to four external PoE switches(not included) to the LAN ports of the NVR. This allows you to distribute 36 cameras across four PoE switches, then connect those switches to the RLN36 for centralized management. Your 4K security system can be accessed with no latency, with or without internet.
3 HDD BAYS, BUSINESS-GRADE STORAGE: The RLN36 network video recorder contains three HDD bays with each supporting up to 16TB HDD (NO HDD included). With 48TB storage in total and 36 IP cameras recording 24/7 at 6Mbps, the HDDs can last around 20 days. For a list of the recommended HDDs, please refer to the FAQ/Video page for more details.
UPGRADED DESIGN, FASTER DATA TRANSFER: This Reolink NVR can be plugged into mic/speaker devices to hear & talk back to whoever you catch on the monitor via Reolink cameras with two-way talk function. The RCA male-to-female converters are required (not included). The USB 3.0 port will help you back up important footage from your HDD to your portable hard drive efficiently.
FULL INTEGRATION WITH SMART REOLINK CAMS: The RLN36 NVR can integrate human/vehicle detection & playback from Reolink IP cams to build an intelligent system. By adding more Reolink cameras with optical zoom, auto-tracking, two-way talk, motion-triggered spotlights features, you can even build a cutting-edge home security system on your own.
NOTE: Before use, please ensure that your NVR is compatible with the camera, update your NVR with the latest firmware. If these steps do not resolve the issue, please provide the NVR hardware version and camera model to the Support Team.