TRENDnet 4-Channel HD PoE Network Video Recorder, Up to 6TB Storage, 720P, Continuous Recording, Easy Install, Advanced Playback, VGA/HDMI, IOS, ONVIF, IPv6 Compliant, TV-NVR104 Standalone 4-Channel PoE network video recorder Plug and play up to 4 PoE cameras Concurrent 720p video recording for all channels A 3.5 SATA I/II bay supports up to a 6 TB HDD / SSD (sold separately) Four weeks of continuous 720p recording Advanced video playback Supports ONVIF compliant network camera