Q-See QSD6204C4-250 4 Channel MPEG4 Network DVR with 250GB HDD and 4 Sony Sensor CCD Camera Kit System includes Digital Video Recorder, 250 GB hard drive and four cameras for comprehensive security Monitor remotely from anywhere through a LAN or the Internet with the RJ-45 connection MPEG4 video for good quality video and good compression to save hard drive space High-quality Sony CCD sensors provide a sharp 420 lines of resolution Audio inputs/outputs on two channels