Western Digital divides their internal hard drives into three distinct families - the WD Caviar Blue for their basic hard drives, the WD Caviar Green for their quieter, cooler hard drives and the WD Caviar Black for their performance-grade hard drives.

According to Western Digital, Caviar Green hard disk drives offer an average power saving of 4-5 watts over their competitors, a feat that they claim is equivalent to reducing CO2 emissions by 13.8 kg per year. Of course, that’s a mere drop in the ocean but if you can help save the environment while you work or play on your computer, why not?

Today, we will look at the improved Western Digital Caviar Green 2 TB hard disk drive - the new Western Digital WD20EARX with Advanced Format Technology and SATA 6 Gbps interface. Let’s find out how well this drive performs!