... HD SDI & 8ch D1 240fps Digital Video Recorder smart phone remote view/ access Support:Arabic,Czech,English,Finnish,Greek,Indonesian,Italian ... HI3521Operating SystemEmbedded LINUXSystem ResourcesPentaplex function:live,recording,playback,backup & remote accessUser InterfaceGUI,on-screen menu tipsControl DeviceFront panel,USB ... SDI & 8ch D1 240fps Digital Video Recorder smart phone remote view/ access