DESC: The SHR-2042 is a 4 channel improved MPEG-4 Digital Video Recorder capable of 120fps recording rate in CIF mode. The SHR-2042 functions in Triplex mode (monitoring/playback/recording), and can also record 4 channel synchronized audio at selectable resolution (CIF/Half D1). Minimum file size is 2.5Kbyte* CIF: 352x240, Half D1: 720x240 Each channel can independently function at variable recording rates to greatly reduce HDD consumption. The SHR-2042 utilizes built-in USB 2.0 CD-RW and USB 2.0 HDD for external storage solutions. For added speed and convenience, an available USB 2.0 slot is provided for simple data output to memory cards.FEATURES:Min File Size: Improved MPEG-4 (Hardware Compression)(Min. file size 2.5K)Display Speed : Real TimeRecording Speed : 120ipsBuilt In CD-RWBack Up : USB HDD, CD-RW, MemoryAudio Recording : 4 ChannelMotion DetectionPTZ ControlSSC-2000 Keyboard ControllerEthernet 10/100 Base TTriplex (monitoring/playback/recording)PDF Spec Sheet