HGST Travelstar Z7K500 internal laptop hard drives 2.5 "SATA III 7200 rev / min 32 MB cache 500GB (Personal Computers)
Proper time delivery, consistent product at an unbeatable price, very protective packaging: all is well at this level. Only downside, the lack of documentation for disk use, its installation, formatting, partition. I know there are videos on the net