M2-Box-DVR4:
H.264, Embedded LINUX operation system. 4ch. video input, 1ch. audio input, TV/VGA/HDMI output; 4ch. D1 realtime recording, 4ch. playback synchronously, support 960H, P2P, Web 2.0, Safari 3G, Snapshot, support CMS, Phone client and PTZ; RJ45, 1*SATA, up to 4TB, small 1u size.

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M2-BOX-DVR8:
H.264, Embedded LINUX operation system. 8ch. video input, 1ch. audio input, TV/VGA/HDMI output; 4ch. D1 + 4ch. CIF realtime recording, 8ch. playback synchronously, support P2P, Web 2.0, Safari 3G, Snapshot, support CMS, Phone client and PTZ; RJ45, 1*SATA, up to 4TB, small 1u size