Most modern distros include the driver. If not:
is a technical specification for Appliance Wiring Material , specifically a type of flat oval telephone or serial cable often used for low-speed data applications like console connections. If you have a console cable with "AWM 20251" printed on the jacket, you aren't looking for a driver for the cable itself, but rather for the USB-to-Serial chipset embedded in the connector. Understanding the AWM 20251 Cable Awm 20251 Console Cable Driver Download