VideoSecu 4 CH CCTV Security Camera DVR System H.264 Network Real Time Remote View Digital Video Recorder Surveillance System, including 1 of 2TB Hard Drive, Security Cameras,Cables,Power Supply WC8 4 channel H.264 compression triplex real time industrial stand alone DVR, 2000GB hard drive included Two USB interface, one for data backup, one for mouse operation Support daylight saving time, PIP and EZOOM function Support the live video, parameter setting and copy playback video via network 3.5" SATA hard drive (HDD)