http://www.bestbuy.com/site/olspage....0954326 68959
Seagate Momentus 100.0GB Internal Ultra ATA/100 Hard Drive for Notebooks
Model: ST9100823A
Get the most out of your laptop with a hard drive that works hard for you by using less battery power and delivering more speed.
100.0GB maximum storage capacity
Ultra ATA/100 interface
Ideal for notebook PCs, tablet PCs and other devices requiring a 2.5" hard drive
Compared to the stock 30 giger i have from Dell for Inspiron 8500