"Cables To Go's Mac to Modem Cable connects your Apple(R) or Macintosh(R) computer with a standard PC Modem. This fully shielded cable protects data integrity from outside noise caused from EMI/RFI interference. The hoods have office quality appearance with long, easy-grip, slotted thumbscrews for neat and easy connections, all with an industrial strength robustness. For custom lengths or special handshaking configurations, just give us a call. Connectors: 8-pin Din Male to DB25 Male. Fully molded and foil shielded to protect against EMI/RFI interference. Connect a Mac to an external Hayes-compatible modem via the 8-pin Din serial port."