Western Digital has announced today that their Caviar Green line of hard drives will now include 2.5 terabyte and 3 terabyte 5400RPM drives; the largest single internal drive in the industry. The 3TB drives will have four platters at 750GB a piece and both drives feature Western Digital's GreenPower Technology, which lowers power consumption, noise, and temperatures for increased reliability and comfort in operation.

The initial problem of drives larger than 2.19GB not being able to be addressed by current PCs has been addressed by WD with their included "Advanced Host Controller Interface (AHCI)-compliant Host Bus Adapter (HBA), which will enable the operating system to use a known driver with correct support for large capacity drives." The 2.5TB drive will retail for $189.00, while the 3TB drive will cost $239.00.

"WD remains a leader of hard drive capacity and low power innovation. With our WD Caviar Green drives, we enable energy-conscious customers to build systems with the highest capacities that deliver the optimal balance of system performance, ensured reliability and energy conservation," said Jim Morris, executive vice president and general manager of WD's client systems storage group. "Customers will be able to take advantage of this breakthrough capacity point now for secondary external storage in legacy 32-bit systems that run on Microsoft® Vista® or Windows® 7 platforms."