The Swann SW241-UD4-11000 provides you with a simple and cost effective solution for managing the viewing and recording of up to four of your analog CCTV cameras using your existing PC. Unlike DVR cards, this unit plugs right into the PC's USB port, eliminating the hassle of having to open and install a PCI board inside the computer. With this system in place, you will be able to view all four cameras on your existing PC monitor as well as record images to the computer's hard drive. As with a stand alone DVR, you can program the unit to record images continuously or only when motion is detected. This will save storage space, which in turn will make it easier to locate event footage. By connecting your PC to the network, you will also be able to view live video streams from a remote location using an Internet PC or even certain compatible cell phones.