Hitachi GST is expanding its enterprise hard drive offering today with a new line of 2.5-inch units that are said to be the industry's fastest and most efficient in their class. The Ultrastar C10K600 drives are claimed to deliver up to 15% better random and 18% faster sequential performance than competing products on the market today while requiring 22% less power. Available in 300GB, 450GB and 600GB versions, they also bring capacity parity with 3.5-inch drives, but require 70% less physical space and consume 65% less power than Hitachi's 3.5-inch enterprise hard drives.

Technical specifications for the new series include a SAS (Serial Attached SCSI) 6.0 Gbps interface, rotational speed of 10,000 RPM, 64MB of cache, Fluid Dynamic Bearing (FDB) motors for better data integrity, Rotational Vibration Safeguard (RVS) technology, and a MTBF (mean time before failure) rating of 2 million hours. As for the exact power draw, Hitachi claims the drives use up 5.6 W during normal operation and 3.1 W during idle.

The company is offering the drives with or without Bulk Data Encryption for hard-drive-level data security. No pricing information was included in the announcement but the Ultrastar C10K600 drives are reportedly available now and shipping to OEM partners. The series will compete against Seagate's Savvio 10K.4 and Toshiba's MBF for a place in datacenters.