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Showa Denko Starts Shipment of 2.5-Inch 1 TB HD Media, Best in Class
─Adopted into Toshiba Electronic Devices & Storage Corp.’s HDD “MQ04ABF100”─

Showa Denko K.K.
September 25, 2017

Showa Denko (SDK) (TOKYO:4004) has started this month shipment of 2.5-inch hard disk (HD) media with storage capacity of 1 terabyte (TB) per disk, which feature the world’s highest storage capacity for this size available on the market today. Note 1

SDK’s 2.5-inch 1 TB HD media have been adopted into Toshiba Electronic Devices & Storage Corporation’s hard disk drive (HDD), “MQ04ABF100,” for client. SDK has started supplying its 2.5-inch HD media for this application, using the ninth-generation perpendicular magnetic recording (PMR) technology. Note 2 In 2005, SDK became the world’s first to manufacture and sell PMR-technology-based HD media.

As the world’s largest independent HD media supplier with a market share of about 25%, SDK has been speedily launching highest-level-capacity HD media. HD media are key components of HDDs, significantly influencing their storage capacity. SDK will continue to strengthen its HD media business in accordance with the company’s motto of “Best in Class.”

Note 1: As of September 25, 2017, according to our research.

Note 2: SDK’s PMR-technology-based HD media are classified as shown in the table below according to respective storage capacities per platter.

2.5-inch 3.5-inch
1 80GB 160GB
2 120GB 250GB
3 160GB 334GB
4 250GB 500GB
5 334GB 750GB
6 500GB 1TB
7 670GB 1.1~1.3TB
8 750GB 1.3~1.5TB
9 1TB 1.5~1.8TB*

1 terabyte (TB) is equal to 1,000 gigabytes (GB).
*To be launched in the early part of 2018

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