... ,warranty 3 ye dvr board/cctv dvr board/h.264 dvr card/dvr board/security dvr card/video capture card/h.264 dvr card/4 channels dvr board Function Feature·Low ... )PTZControl from Local or remote,support protocol of popular high speed dome or speed dome.RemoteISDN, DDN, PSTN, LAN, WAN, Internet, ADSL, Modem ...