DC Barrel Adapter - 5.5mm x 2.1mm Female to 7.9mm Male with Pin Plug Inside

This is a non-branded barrel adapter. It will convert a 5.5mm x 2.1mm barrel plug socket to a 7.9mm male barrel plug with interior pin. 

The 5.5mm x 2.1mm is a common barrel adapter used in various electronics. The other end is the larger 7.9mm adapter with a pin inside, this is the same exact type of connector used on older ThinkPad computers. The continuity is from center pin to center pin.

Please see photos, I took a picture of the front/back so you can see the configuration. The adapter is under 2" in total length.

Listing Includes: 

• (1) Generic 5.5mm x 2.1mm Female to 7.9mm Male Barrel Adapter