DVR cards are PCI computer components that allow video signal to be received and recorded on hard disk or other memory medium. Received video signal can be analized in real-time or later. Although they can be used for other purposes their intended purpose is to be used as a remote video surveillance device. When purchasing DVR card it is immportant to considere 3 distinct characteristics; frame rate, number of ports or channels and compression type. All cards Widelta is offering You have MPEG4 compressing algorithm and built-in RS-422/485 interface.
Widelta is offering you a wide range of high quality PC video recording cards.