A duct work assembly is coupled to an end of an electronics enclosure that
houses one or more heat generating devices, such as electronics servers.
The duct work assembly includes individual duct guides that each have a
deformable end, which is configured to locally deform around the
electrical connection lines extending from the rear of one or more
electronics servers. The deformable end can be made of bristles, as in a
brush, or foam that includes slits and/or holes.