I am having acer laptop.and I bought a new toshiba 1 TB hard drive ( external) from a near by store. I was very much impressed by its looks, but after some time all my expectations were washed off. It was so slow to copy my data of 5 GB( containing movies & videos) . It took 2hrs to reach 82% . My laptop is i7 and 4GB ram.its really fast but this drive disapointed me a lot.