Hitachi's Deskstar 7K3000 3TB hard drive
 

Hard drive makers have been slow to release new models with three-terabyte capacities. Hitachi was the first to reach 3TB with a 7,200-RPM desktop model, and we've tested it against a full house of over 30 different drives to see how the 7K3000 compares.

http://techreport.com/articles.x/20562