QIHAN DVR 4CH QH-S6104B-HAM HD/SDI

SUPPORT AHD, ANALOG AND IP VIDEO INPUT_x000D_ AHD AND ANALOG INPUT ARE SELF-ADAPTIVE_x000D_ THIRD-PARTY IP CAMERAS SUPPORTED WITH ONVIF V2.4 CONFORMANCE_x000D_ SUPPORT 1 OR 2 SATA HDDS, EACH HDD IS UP TO 4TB, 2 USB2.0_x000D_ 4/8 CHANNEL SYNCHRONOUS PLAYBACK_x000D_ SIMULTANEOUS HDMI AN