The 1658615-2 is a 25-way 2-row D-sub Plug for round conductor flat ribbon cable with gold-plated phosphor bronze contacts. The Amplimite HDF-20 series all-plastic plug comes with black thermoplastic housing, standard mounting holes and tin-plated solder tail. It accepts 28/26AWG solid and stranded round conductor flat ribbon cable on 0.050-inch centers.