system pull

Etymology
Literally meaning “pulled from an already assembled system”.

Noun

 * 1)  A new computer part that has been removed from an unused, previously assembled system.
 * 2)  A new computer part that has not been unpacked, but is excess inventory from an end-of-lifed system configuration.
 * 3)  A used computer part.

Usage notes
In casual use by end users, refers to "used" parts, particularly parts replaced when upgrading, notably memory or hard drives. In computer sales, refers instead to "new" parts, which are being resold by a system assembler; this may be specified as "new system pull" to emphasize that it is a new part.