... detection7. Support 16 Channel 720P IP Camera 8. Support 2 SATA II interface, total 4TB9. Embedded I/O device control, Embedded PTZ control ... : 30 fps(max)Recording Bit Rate1080P – 6M, 720P-4M, D1- 2MAudio codingIMA-ADPCM/G.711/G.726AudioSingle track, talkback, RCA ... input, 1 channel output Alarm trigger: motion detect, video lost; Alarm trigger the dvr’s recording, interlinked PTZ, voice notice, ...