Back when I started my IT career in 2002 most offices were doing away with their old beige boxes and opting for more contemporary designs in gold and silver.
Compaq was leading the charge in this regard, evolving their existing Deskpro EN models into the D510 line, and the SFF model in particular was extremely popular.
Check out my video where I take this sorry looking example and coax it back to health with the help of a new PSU and a partial re-cap.