Summary: I purchased this item to replace the drive in my laptop which had gone blooey. I have a DP background, average technical skills and a superior ability to FOLLOW DIRECTIONS so swapping the drive and restoring software went pretty smoothly. I've had the new drive about a year and it's still working. Performance seems fine but that's a totally subjective benchmark.
Summary: It does exactly what the description says. It is a good SATA Hard drive, and I just plugged it in my Inspiron 1440 laptop and it installed windows great. I'm not sure if the product description says anything about this, but I got a WD brand drive - just an fyi if you are looking at getting this one.
Summary: I bought this product because my old hard drive was wrecked. I originally thought that a new good hard drive would cost around $100. However, when I saw this, I thought that there was no way a 250 gig hard drive would cost that low and work. I was proven wrong! Five stars my man!
Summary: The drive works exactly as designed. Installed easily (I am not a member of the Geek Squad by any means). BTW, the real Geek Squad wanted $250 to replace my drive. It required 4 screws and took 5 minutes.