... out Free DDNS, HDMI,WIFI,3G,VGA CCTV camera DVR 16CH video and 16CH Audio real time Recording and displayRS-485 control support ... ,recording,playback,backup & remote accessUser InterfaceGUI,on-screen menu tipsDisplay1/4/16VideoVideo StandardsPAL 625 line,50 f/s;NTSC 525 line ... Control1 RS485USB Interface2x USB2.0Hard Disk2 SATA ports(Max 2000G) H.264 full D1 WiFi 3G HDMI 16CH network CCTV camera DVR