English Top>News Releases>2014>SDK Starts to Mass-Produce Highest Capacity 3.5-Inch HD Media―Media Introduced into the World’s Highest 8 TB Capacity HDDs―

News Releases

SDK Starts to Mass-Produce Highest Capacity 3.5-Inch HD Media
―Media Introduced into the World’s Highest 8 TB Capacity HDDs―

October 3, 2014

The leading-edge 3.5-inch hard disk (HD) media produced and sold by Showa Denko (SDK) (Tokyo: 4004) have been introduced into 8 TB hard disk drives (HDD), the world’s highest storage capacity HDDs to date1.

The 3.5-inch HD media introduced this time use the perpendicular magnetic recording (PMR) technology2, and are classified as the seventh generation products of the HD media based on the PMR technology. SDK pioneered in producing and selling HD media using the PMR technology in 2005.

HDDs are used in PCs, DVD recorders and other electronic devices as storages to record digital data. The number of shipment of HDDs, especially those for the use in storage servers in data centers, is expected to increase very rapidly because of the increase in data generation accompanying the extension of cloud computing. Major components for HDDs consist of media to store data, magnetic heads to write and read data, motors to locate magnetic heads and rotate media. The number of shipment of HD media is expected to show annual rate of increase of about 3%.

SDK is the world’s largest independent HD media supplier, and has about one quarter share of the global market. HD media are key components that decide storage capacities of HDDs. SDK has been pioneering to put the world’s leading-edge HD media of the time onto the market. SDK will continue producing the “best in class” HD media, and further strengthen its HD media business.

In the PhaseⅡof its medium-term consolidated business plan PEGASUS, SDK places the HD media business as one of two wings to dramatically improve the performance of the Showa Denko Group, while placing the graphite electrode business as the other wing. As the world’s largest independent HD media supplier, SDK will aim to ensure stable supply of high-capacity media. SDK will also continue meeting customer requirements in terms of quality as well as quantity.

[Reference]

  • 1.As of October 3, 2014 (To the best of SDK’s knowledge)
  • 2.PMR technology:Compared with the conventional technology that stores magnetic data on a horizontal plane of the HD media, the PMR technology enables vertical magnetic recording, resulting in a dramatic increase in recording density.
  • 3.SDK’s HD media based on the PMR technology are classified as shown in the table below according to respective storage capacities.
(Unit: gigabytes per disk; as of October 3, 2014)
Generation 2.5-inch3.5-inch
1 80 160
2 120 250
3 160 334
4 250 500
5 334 700
6 500 1000
7 670 1100~1300

 

For further information, contact:
PR Office (Phone: 81-3-5470-3235)