Channel DVR: At Spy Emporium, we carry 4 channel DVR , economical digital video recorders with 4 channel H.264 embedded Linux 2.6 Network DVR. Real-time display recording. 720-480 VGA output, motion detection, 1 channel audio impute, SATA HDD (320GB), time/Date stamp, back up USB, network capability, phone viewing and Symbian Windows mobile. 4 channels DVR with no hard drive, real-time genuine triplex with built in web server for remote monitoring and operations. Back up and operation 4channel DVR 480 fps SATA ready.