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SDK Starts Shipments of 2.5-Inch 500 GB HD Media

Showa Denko K.K.
 August 3, 2011

Showa Denko K.K. (SDK) has started commercial shipments of 2.5-inch hard disk (HD) media with storage capacity of 500 gigabytes per disk, using the sixth-generation perpendicular magnetic recording (PMR) technology. 

To the best of our knowledge, our new 2.5-inch HD media have the world’s highest storage capacity for this size available on the market today.  SDK has already commercialized 1.89-, 2.5-, and 3.5-inch fifth-generation PMR media.

Demand for high-capacity HD media is growing for such applications as PCs, cloud computing and digital electric appliances.  To ensure speedy and stable deliveries of best-quality high-capacity HD media, SDK completed capacity expansion at its site in Singapore in June this year.

As a result, SDK’s total HD media production capacity has been increased to 27 million units a month since July this year.  SDK is developing world-leading technologies for HD media with higher capacity.  As the world’s largest independent HD media supplier, SDK will continue meeting customer requirements in terms of quality as well as quantity.

[Reference]
1.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.

2.The fifth- and sixth-generation PMR media:
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 August 3, 2011)
Generation 1.89-inch 2.5-inch 3.5-inch
1 40 80 160
2 60 120 250
3 80 160 334
4 120 250 500
5 160 334 750
6 250 500

For more information, contact:
IR & PR Office (Phone: 81-3-5470-3235)