You are purchasing one NEW EF Johnson RS232 Programming Cable for the EF Johnson 5100 series portable radios.
Cable Part # 023-5100-920
Comes with PC Config software Version 2.4.2 on a CD.
The retaining screw piece may be broken off (see picture), as these sat in storage for a lengthy period of time.
The retaining boot near the side radio connector may be brittle and prone to breaking due to age/storage conditions. The cable itself is still good and completely usable.