Seagate launched its first 2TB enterprise-class disk drive as part of a new family of near-line SAS and SATA drives. The new Constellation 2.5-in. and Constellation ES 3.5-in. drives come in Serial Attached SCSI 6Gbit/sec. or Serial ATA 3Gbit/sec. models and include a feature that allows them to shut down when not in use to save power.