Laptop GPU

Ive been looking to upgrade the GPU on my laptop but when i opened it up i expected to see something like this:

http://www.ebay.co.uk/itm/Alienware-M15x-Nvidia-8700...

but instead the GPU has a long white brick? connector on the underside. What type of connection is this?

And can i buy a GPU with this connection?

This is a Toshiba Satellite X200 Laptop

http://forums.computers.toshiba-europe.com/forums//t...

Well.. after 4 years this one is still going strong.

so as per usual an upgrade is hard to do if not impossible for a laptop.

Thanks for the link