A serial cable allows two digital devices to exchange data between themselves. This is achieved using serial communication protocols, or data sent bit-by-bit. With serial cables mostly categorized by their interfaces and standards, the most recognizable of them all is the RS-232 (Recommended Standard-232) standard interface. ShowMeCables offers a wide variety of serial cables, including serial adapters and extension cables. Available in male-male, female-female, and male-female genders, they feature several pinout options, including AT Modem, Cisco, Null Modem, and straight through. With a wide selection of categories to choose from, including DB9, DB15, DB25, and DB37, our stock cables range from 1 to 100 feet. Custom lengths are also available. With hundreds on hand, our serial cables are ready to ship today, with low or minimum order quantities.