Does Anyone know what this port is?

[therbert]

http://puu.sh/su92
Off an HP dv5 laptop from about 4 years ago

 

[pjmelect]

It is a proprietary expansion port for connecting to an HP docking station.

 

[therbert]

It is a proprietary expansion port for connecting to an HP docking station.

Thank you very much for your prompt reply.

 

[therbert]

Best answer selected by therbert.