Western Digital Corporation announced that it has added 2.5 and 3 terabyte (TB) models to its WD Caviar Green family of SATA hard disk drives. According to the statement, the WD Caviar Green 2.5 TB (WD25EZRSDTL) and 3 TB hard drives (WD30EZRSDTL) sell for $189 and $239 respectively.