The invention provides a temperature control device for a disk drive unit, the temperature control device includes a housing for connection to a carrier for a disk drive unit; an air flow generator arranged in the housing for providing a flow of air to a disk drive unit in a connected carrier; and, an...http://www.google.co.uk/patents/US7612996?utm_source=gb-gplus-sharePatent US7612996 - Temperature control device, disk drive unit test apparatus, and a method of testing or operating a plurality of disk drive units