H.265 / H.264 video format. 8-ch analog camera and 4-ch IP camera inputs. -ch HDMI, 1-ch VGA, HDMI at up to 4K. (3840 x 2160) resolution. HDMI and VGA simultaneous output. 1 SATA HDD up to 8 TB. P2P function for GV-Eye app. ONVIF cameras support NDAA Compliant. USA Vision XVL810 8ch TVI/AHD/CVI/CVBS/IP 4K DVR.H.265 / H.264 video format. 8-ch analog camera and 4-ch IP camera inputs. 1-ch HDMI, 1-ch VGA, HDMI at up to 4K. (3840 x 2160) resolution. HDMI and VGA simultaneous output. 1 SATA HDD up to 8 TB. P2P function for GV-Eye app. ONVIF cameras support NDAA Compliant.