19-inch panels, secure mounting of category 3 couplers has never been better. L-com's exclusive flange mount couplers pre-installed into standard 19-inch rack panels provide the best method for coupling up to 32 voice or network grade patch cables on a rack. The metal flange is attached permanently to the panel with two 4 to 40 screws. Panels have a black powder coat finish for durability and each port is numbered to simplify cable organization and tracking. Optional cable management bracket PR-CMB available.