Western Digital Caviar Green WD6400AARS

 The Caviar Green WD6400AARS is a high-capacity and high-performance hard-drive from Western Digital. At 640 GB the drive is large enough for most users to store photo's, videos, and multi-media files.

This drive is designed to be used in higher performance machines as the SATA interface is not often found is lower end computer models. This unit is fast and can tackle professional demands with the 64MB buffer and 111 MBps to 300 MBps (internal vs external) transfer rates. What makes this drive unique is that engineering time was spent on designing a very eco-friend drive. This unit is rated at using 40% less power then other comparable drives.