256MB Laptop DDR RAM Memory Card Upgrade

256MB DDR-333MHz-CL2.5 ProMOS Technologies Laptop Memory This was taken from my Compaq laptop, when I upgraded my memory. This will fit ANY computer WHICH uses the DDR memory card format. The two memory cards in your laptop MUST match in size, therefore this card will only work with another 256MB card. That means you can upgrade from 256MB to 512MB of memory. If you’re not sure what type of memory your computer needs, I’d suggest reading the following article: http://pcworld.about.com/magazine/2201p165id113460.htm