... PTZ: RS485 4) 1 SATA interface Embedded Linux 8-CH Network CCTV DVR Digital Video Recorder withDual USB/LAN/VGA/ ... compression: H.264- Audio compression: G711- Video input: 8-CH BNC input- Video output: 1-CH BNC output- Audio ... channels: 1/4/9- PTZ: RS485- 10/100M RJ45 port- Network functions: TCP/IP,UDP,DHCP,DNS,IPFilter,PPPOE,DDNS,FTP ... of screws - 1 x User manualPictures of the network DVR SKU 20150