Great product. Cast for frequent use, it remains fast and quiet. Its capacity is not huge for today's uses, but for a pro or semi pro PC is ideal. CAUTION latest machines no longer accept that the HDD 7mm thick. this one is 9.5 mm is the thickness of the discs of the previous generation. A favor to boost mobile-type LENOVO Thinkpad PC performance, very stable and strong and that only accept, for models of there 3-5 years as HDD 9.5 mm thick.