Western Digital is applying new cooling tech to its range of Caviar hard drives, adding new technology that helps to cut down on heat to their Caviar HDDs, which now have capacities up to 320GB. Western Digital claims that environmental features can reduce the life of hard disks, and that their new drives boast the lowest power consumption of any desktop unit.

The drives are also quieter, said WD. The WD Caviars at 320GB have started shipping this week, while the Caviar SE320 will be in the shops next month, it said. The firm is taking pre-orders for these drives, and said if you buy by the end of the year, the units will be shipped free. The suggested price for the SE320GB is $249.

Other improvements have also been added to the drives, including better caching algorithms.