This lot of 40 desktop PC 3.5" SATA hard drives is a great find for any computer enthusiast. These internal drives have a storage capacity of 500GB and are compatible with both PC and Mac systems. They support HDD drive types, and have a SATA interface for efficient data transfer. The brand and model of the hard drives are assorted, so you will receive a mix of reliable and trusted brands. These drives have been tested for functionality and are in good working condition. Update your computer's storage and keep your data safe with this lot of 25 hard drives.