Connects any serial modem with DB25 to PC DB25 port. This is a standard RS232 straight-thru serial cable and works for all serial applications. This cable has matched impedance, PVC jacket, molded ends with thumbscrews and inner hood soldered 360 degrees to the connector for complete end to end shielding. Pin-Out: 1-1 / 2-2 / 3-3 / 4-4 / 5-5 / 6-6 / 7-7 / 8-8 / 20-20 / 22-22 / Shield-Shield. (Connectors: DB25 Male to Female; Length: 6ft)