The Xylogics 450SMD Disk Controller, renowned in the 1970s and 1980s, interfaced with Storage Module Devices (SMD) utilizing CDC's bit-serial data interface. It facilitated rapid data transfer between SMDs and computers, serving as a prevalent standard for mini-computers. Esteemed for its reliability, this controller efficiently managed bit-serial data, seamlessly integrating into storage systems. The 450SMD's role was foundational in shaping the era's data storage and computing landscape, solidifying its position as a crucial component in the evolution of technology during that period.