Reolink 16 Channel PoE NVR Network Video Recorder 4TB HDD Security Camera System
External hard disk drive is supported. HDD Capacity: 2x internal port, 6TB for each port (support up to 12TB in total). Reolink 16MP PoE NVR 16 Channel Pre-Installed 4TB Hard Drive. The NVR will sound a buzzer sound using the buzzer function.