L-com's exclusive line of panel mount jacks is the perfect choice for passing modular cables through a rack panel or wall plate. The unique flange mount design accepts #4 or #5 screws for secure mounting of these couplers to any panel (purchased separately). Contacts have 30 microinches of gold plating for durability and the ivory plastic shell is UL94V-0 rated. 10" wire leads allow you to connect directly to a PC board or another connector. These couplers can be used for either voice or data applications. Large volume discounts offered; Call today. This is L-com part number ECJ504-8.