HP 639958-001 SATA cable connects a compatible SATA drive to a computer’s SATA connection. HP lists this exact spare part for the HP Compaq 8300 Elite Business PC.
The cable is 18 inches long and has one straight end and one angled end. The angled connector can help route the cable where a straight plug would be awkward, while the different end shapes make this version easy to distinguish in the parts list.
This part is distinct from HP 639959-001, which is 17.7 inches long and has two straight ends.