Laptop Memory Pins Laptop Memory Question! 200-pin And 240-pin?

Laptop memory question! 200-pin and 240-pin? - laptop memory pins

I just got a new Toshiba Satellite P205-S6327 laptop and I upgraded the memory to 1 GB for Vista, because it is not enough. And I am very good with computers before but never owned a laptop and I wonder what I need space in the team, I know it's PC2-5300, I looked around me and I still see something 2Gbs pins 240 and 200 - pin PC2-5300S and I do not know why he decided .. Here is my number ..

DDR2 2GB PC5300 PATRIOT 240-pin ($ 90)
http://shop4.outpost.com/product/5223667

Crucial 2GB PC2-5300 667MHz 200-pin ($) 88
http://www.buy.com/prod/Crucial-2GB-PC2-5300-667MHz-200-pin-SODIM/q/loc/101/203447468.html

What is the difference? It fits in my computer .. Ive been looking for about 3-4 days and I am very confused .. Please help, thank you