TRUE ESSENTIALSCABLES & CONNECTIVITY25ft Null Modem Serial Cable DB9 Female to Female RS232 DTE Crossover Cable25ft null modem serial cable, DB9 female to DB9 female, wired for DTE-to-DTE crossover connections. Used to link two RS232 serial devices directly or transfer files between two computers over a serial port. Free 30-day returns -- questions before you buy? Just ask.SpecificationsConnectors: DB9 Female to DB9 FemaleWiring: Null modem crossover, DTE to DTE (Pin-out: 1,6,8-7 / 2-3 / 3-2 / 5-5 / 7-1,6,8)Length: 25ftConstruction: Matched impedance conductors, PVC jacketConnector Build: Molded ends with thumbscrews, inner hood soldered 360 degrees for full end-to-end shieldingCompatibility: RS232 serial devices, file transfer software included with MS-DOS and Windows, Laplink-compatibleRating: Low voltage, not to exceed 1,000 volts; connectors suitable for telecommunications useShip Weight: 0.72 lbsWhy buy from True EssentialsFree 30-day returns on every order. Fast handling and shipping. Questions before you buy? Just ask -- we're happy to help.Certified Service-Disabled Veteran-Owned Small Business