Main processorGrain gm8183 Video input8 ch < bnc input > PerformanceD1 or 8cif Video output1ch tv output , 1ch vga output ResolutionD1/cif System resourceSixfold operation: live recording, playback, backup, remote access, ptz control, mobile monitoring Control modeFront panel, usb mouse, ir remote control, network Audio4ch rca input, 1ch rca output Play back8ch at the same time Ptz1*rs485, support pelco-d, pelco-p procotol Usb2 * usb2.0 Mobile phoneSupport window mobile, symbian, android, iphone and blackberry etc Hdd capacityUp to 2tb, sata interface hdd*1 Network interface1 rj-45 10/100mbps ethernet connector¡¡ BackupUsb disk, network LanguagesMultilingual support User extendDesign boot screen logo by youself Power supplyDc12v, 3a (adapter included) Weight:2.8kg