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April 16, 1998

Hitachi Announces World's Fastest Hard Disk Drive

- 3.5-inch drive for the OEM market -

In recent years, UNIX and Windows NT^(R) server systems are being used to store and manage large amounts of information for enterprise processing, data warehousing and other such applications. The 3.5-inch drives used for such servers need to provide higher performance and improved reliability with low power consumption.

Previous 3.5-inch drives provided by Hitachi for server and workstation applications include the DK319H-18, which used an MR head to achieve a storage capacity of 18.2 GB, and the slim-form-factor DK329H-91 with a capacity of 9.1 GB.

The newly-announced DK3E1T-91 has the world's fastest drive speed of 12,030 rpm, and uses high-speed access technology to achieve an average seek time of 5 ms¹. Newly developed signal processing technology boosts the data transfer rate to up to 27.3 MB/s². In a transaction processing environment, the DK3E1T-91 provides an approximately 1.5-fold improvement compared to the DK329H-91. At the same time, at 11.8 W the drive 's power consumption is on a par with that of the earlier drives³, keeping heat generation down to the same level. This ensures high reliability. The new drive has a storage capacity of 9.2 GB and supports Ultra SCSI-2 and Fibre Channel interfaces.

1. Average seek time for reading data.
2. Internal data transfer rate.
3. Power consumption of previous models DK318H-91 and DK328-43 are 12.1 W and 8.5 W, respectively.

Pricing of OEM sample units (excluding tax)

DK3E1T-91 series

240,000 yen

Availability

Model	For engineering sample units	Volume production
DK3E1T-91LW (Ultra-2 SCSI, WIDE)	June '98	September '98
DK3E1T-91LC (Ultra-2 SCSI, SCA-2)	June '98	September '98
DK3E1T-91FC (Fibre Channel)	July '98	October '98

About Hitachi
Hitachi, Ltd., headquartered in Tokyo, Japan, is one of the world's leading global electronics companies, with fiscal 1996 (ending March 31, 1997) consolidated sales of 8,523 billion yen (68.7 billion dollars^*). The company manufactures and markets a wide range of products, including computers, semiconductors, consumer products and power and industrial equipment. For more information on Hitachi, Ltd., please visit Hitachi's Web site at http://www.hitachi.co.jp.

* At an exchange rate of 124 yen to the dollar.

Trademarks and product names

• UNIX is a registered trademark exclusively licensed by X/Open Company Limited in the United States and other countries.
• Windows NT is a registered trademark of Microsoft Corporation in the United States and other countries.

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