D-Subminiature Cables Amphenol Cables on Demand D-Subminiature (D-Sub) Cables are available from 9 to 78 pin counts and provide exceptional performance in commercial, industrial, or enterprise applications where longevity and repeated disconnects are required. The fully assembled HD D-Sub Cables integrate copper tape + aluminum mylar shielded data-grade wire with pre-terminated DB9 male and female D-sub connectors. D-Sub cables are ideal for RS232 serial data, prototype, control, and low-voltage applications.