... by networkBackup:Provides 2 USB 2.0 backup interface on front and back of DVR for hard disk, supports backup through ... of 10M/100MPower supply: 220V 50HZ 110V 60HZ Waterproof IR camera specification: Model NO.ELP-401VRImage Sensor1/4 sharp CCDResolution420TVLS/N ... package will be packed in good appearance.Our productCCTV Camera, IP Camera, USB camera, car camera, standalone DVR, all in one LCD combo DVR ...