Western Digital Caviar Green 1.5TB 32MB Cache SATA Internal Hard Drive for $99.99 shipped. Here is a screenshot for your reference. It is part of WD’s GreenPower lineup, which reduces energy consumption. Note that it comes in OEM packaging, which means no pretty retail box and marketing materials but the drive is otherwise identical. Most places have this 1TB SATA drive for about $119 or more.