GWX / GWX-SMT Modular Jacks & Plugs Kycon GWX / GWX-SMT Series Modular Jacks and Plugs are durable, right angle, low profile, and suitable for PC add-on. The tab-up design facilitates easy insertion and removal of the mating plug. The Kycon GWX / GWX-SMT Series Modular Jacks and Plugs are fully shielded for EMI/RFI protection and are available in thru-hole and surface mount contact options.