The VB41x8 modular card is designed for use with the modular rack system. Each card has 8 video balun units, built-in surge suppression and video loss detection.

The Nitek video baluns are transmission devices the provide a low cost means for sending live video over unshielded twisted pair, point-to-point wiring for distances up to 750 feet. The Nitek video baluns are also compatible with all of the "up-the-coax" control systems. A basic system would require one unit at each end of a twisted pair of wires. The Nitek video baluns are intended for use over existing in-house telephone wiring, Category wiring or other twisted pair cable runs to provide a convenient, cost-effective alternative to coax. Nitek video baluns are designed to provide immunity from noise and interference, even when run next to line power.