51 DH-XVR5108HS-I3 8 Channel Penta-brid 1080P Cooper 1U Digital Video Recorder 5MP,4MP,1080P@25/30fps, 720P@50/60fps H.265+/H.265 dual-stream video compression Supports HDCVI/AHD/TVI/CVBS/IP video inputs Max 12 channels IP camera inputs,8+4 each channel up to 6MP; Max 48Mbps Incoming Bandwidth Smart Search and Intelligent Video System Supports 1 SATA HDD, up to 10TB USB: 2 USB Ports (1 USB 2.0 + 1 USB 3.0) RS485:1 Port, for PTZ Control,P2P Support 1 Audio Input / 1 Audio Output