XVR301-04/08U3 Digital Video Recorder Support Ultra 265/H.265/H.264 video formats Support audio over coaxial cable (TVI cameras) Control the dual‑light of UNV analog cameras under TVI Support TVI, AHD, CVI, CVBS, IP cameras with adaptive access 4/8‑channel BNC input Support 1‑ch CVBS output, 1‑ch VGA output, 1‑ch HDMI output at up to 4K (3840 x 2160) HDMI and VGA simultaneous output Long transmission distance over coaxial cable Support mainstream cameras of ONVIF and RTSP protocol