We love green products. External hard drives are a great area to focus power saving technology on because they usually stay on all day backup up data or giving continuous access to your data. This huge 2TB Fantom Drive GreenDrive has a 300Mbps eSATA port and a USB 2.0 port. It's ideal for streaming large media and storing all your photos, video, and other large files. It is compatible with both PC and Mac, has a quiet fan-free design, and features an aluminium casing for support and sturdy looks. Plus you can save up to $14 a year on electricity.