Smart H.265+/H.265/Smart H.264+/H.264; All PoE ports support ePoE & EoC; IP Camera Input: 8 Channels; Two-way Talk: 1 Channel Input, 1 Channel Output, RCA; Interface: 1 HDMI, 1 VGA; Alarm input: 4 Channels; Relay Output: 2 Channel; Sync Playback: 8CH: 1/4/9; PoE: 8 ports (IEEE802.3af/at) All ports support ePoE & EoC; Internal HDD: 2 SATA III Ports, Up to 10 TB capacity for each HDD; Power Supply: Single, AC100V ~ 240V, 50 ~ 60 Hzen