Safeguard your home office retail premises warehouse staff & more Monitor & record up to 4 cameras simultaneously Easy to use remote viewing software to watch your cameras over the internet with broadband connection Networking DVR for connection to your Local Area Network LAN & remote viewing over the web State-of-the-art features including motion detection recording alerts & on screen programming Easy connection to any TV monitor & security cameras Variable compression recording for high-quality playback or increased disk storage capacity Pack contents DVR4-Pro-Netand 153 power supply IO port adaptor user manual on CD quick start guide network viewing software theft deterrent stickers. We have a range of specific DVR hard drives designed specifically for 247 video recording as the reduced heat generation enables surveillance systems & PVRs to run cooler & longer. Please note that these are not for use inside PCs does not support data only video. They are supplied with a 5 year warranty B Order Code Description BA99HNAV 160GB ATA HDDA98HNAV 250GB ATA HDDA97HNAV 320GB ATA HDD