You don't need a full size industrial PC to take these cards .you can use 2U server. With the installation of the UTiSS Provided interface card, you can simply connect the PC and the external box with one cable. The most important feature is that the PC and encoding functions are separated. This is important logistically, especially for large companies-failed PC's can go back to the PC vendor and failed capture units can go back to UTiSS. Otherwise you need a factory / support centre that can handlethe combined product, which may be difficult for some companies to provide.
The installer only has to install the PC and the PCI Express External Capture Boxand the rack is ready to have video connected to it via BNC connectors. There is no need to install cabling from the card connectors to the back of the rack.
If you want to make Various Channels DVR system, this solution could be very useful.