Converts a DB9 male into a DB25 male or a DB25 female into a DB9 female. Fully shielded against outside EMI/RFI interference. Straight-through design. 100% Compatible with all serial devices. Our serial cables are made with the highest quality materials to ensure the highest level of satisfaction possible on today market. All of our serial modem cables are built with 28 AWG, 9 conductor wire, Gold plating contacts, fully molded ends with thumbscrews, and fully shielded construction.