Null modem cables and adapters connect two serial devices that require a null modem (cross-wired) configuration. This 6ft cable has a DB9 female connector on each end. Superior molded cables with foil-shielding offer maximum EMI/RFI protection. Gold-plated connectors and contacts provide superior conductivity. Tripp Lite warrants this product to be free from defects in materials and workmanship for life. Key Features DB9 female to DB9 female Superior molded cables with foil-shielding for maximum EMI/RFI protection Gold-plated connectors provide superior conductivity Tripp Lite warrants this product to be free from defects in materials and workmanship for life System Requirements Two serial devices with DB9M connectors requiring a null modem (cross-wired) configuration Package Includes 6-ft. Null Modem Gold Cable DB9F to DB9F