Swann SW242-4AI DVR4-8500AI - 4 Channel Digital Video Recorder Monitor & record 8 channels with an industry-leading DVR that has to be seen to be believed! Has same state-of-the-art features as DVR16-8500AI including pre-installed 250GB Seagate HDD Amazingly, records up to 2 months of high quality video continuously from 8 cameras Ideal for use with 4 Swann Pro High Resolution Cameras, PC, PC monitor (with VGA connector), security monitor, or TV via AV cable Perfect for business, medium-sized retail security, large homes, law enforcement, schools,warehouses, parking lots & more