Toshiba Introduces High-Capacity 640GB 2.5-Inch HDD

Toshiba Storage Device Division (SDD), the pioneer in small form factor hard disk drives (HDDs), today announced a new series of 5,400 RPM 2.5-inch HDDs offering up to 640GB(1) of capacity. With demands for storage at an all-time high, Toshiba’s new MKxx65GSX 2.5-inch HDD lineup is an attractive solution for an array of computing applications from notebooks to all-in-one desktop and EnergyStar PCs, which can benefit from lower power consumption without sacrificing storage capacity.

"IDC estimates in its study of the expanding digital universe that 36.5 terabytes of data will be generated per second by 2010(2)," said John Rydning, research director at IDC. "A significant portion of the digital content being generated needs to be stored in homes and small businesses efficiently. With advances in 2.5-inch capacity and technology, Toshiba’s new 2.5-inch form factor HDD provides a good combination of capacity, mobility and low-power consumption for portable devices, and increasingly for applications traditionally served by larger form factor HDDs."

Toshiba’s high-capacity MKxx65GSX series is ideal for commercial and consumer notebook PCs, as well as all-in-one desktops, EnergyStar PCs, surveillance systems, digital video recorders, point-of-sale (POS) terminals and other applications, which have traditionally used 3.5-inch HDDs to meet their storage requirements. Toshiba’s new 320GB-per-platter design reduces power consumption and heat dissipation by more than 80 percent compared to like-capacity 3.5-inch HDDs. Low heat generation keeps the HDD running cooler during operation, enhancing reliability and long-term access to data, photos, music, videos and other valuable user content.

With a maximum areal density of 528.5 Gbits/in(2), the MKxx65GSX series includes 640GB, 500GB, 320GB, 250GB and 160GB models. The series’ top-capacity HDD of 640GB can store up to 182,000 digital photos, 168,000 digital music files or 520 downloaded digital movies of high-definition video(3). For added durability, Toshiba offers a free-fall sensor option to help protect the drive should the host system be dropped.

"These new high-capacity 2.5-inch HDDs provide benefits for both notebook and desktop applications," said Maciek Brzeski, vice president of marketing at Toshiba Storage Device Division. "Not only do they continue to close the performance gap between notebooks and desktops, they also provide a perfect alternative to 3.5-inch HDDs in desktop and POS applications requiring energy efficiency and reliability in a smaller footprint."

Information and Availability

Toshiba’s new 5,400 RPM 2.5-inch HDD series is scheduled to ship to distributors and PC manufacturers in the fourth quarter of 2009. For more information on Toshiba’s line of industry-leading small form factor hard drives, visit

  Product Specifications

  Model Number                                   MXX65GSX/GSXF
  Maximum Capacity (Formatted) (1)    640GB / 500GB // 320GB / 250GB / 160GB
  Number of platters                                   2 // 1
  Areal density (max)                             528.5 Gbits/in(2)
  Media transfer rate (max)                          1,148 Mbps
  Average seek time                                     12 ms
  Rotational speed                                     5400 RPM
  Buffer memory                                          8 MB
  Interface                               SATA 3.0Gb/s (and SATA 1.5Gb/s)
                                          Serial ATA Revision 2.6 (ATA-8)
  Interface transfer rate                             3.0 Gb/sec
  External dimensions (WxDxH; mm)         69.85 mm x  100.0 mm x  9.5 mm
  Weight (g)                                     102 // 98 g (max)
  Energy consumption efficiency              0.00086 / 0.0011 // 0.0017 /
                                                 0.0022 / 0.0034 W/GB
  Shock resistance:
            Operating                          3,920 m/s2 (400 G) 2ms
            Non-operating                      8,820 m/s2 ( 900 G) 1ms

  About Toshiba Storage Device Division

Toshiba SDD, a division of Toshiba America Information Systems, Inc., leads the market in the development, design and manufacturing of small form factor 2.5-inch and 1.8-inch hard disk drives for original equipment manufacturers, value-added resellers, value-added dealers, systems integrators, distributors and retailers in the United States. The company also offers a line of high-quality personal storage devices that enable consumers to quickly and easily back-up personal digital content and entertainment libraries. Inherent in the Toshiba storage family are the high-quality engineering and manufacturing capabilities that have established Toshiba products as worldwide leaders. For more information, visit

About Toshiba America Information Systems, Inc. (TAIS)

Headquartered in Irvine, Calif., TAIS is comprised of four business units: Digital Products Division, Imaging Systems Division, Storage Device Division and Telecommunication Systems Division. Together, these divisions provide mobile products and solutions, including industry-leading portable computers; projectors; imaging products for the security, medical and manufacturing markets; storage products for automotive, computer and consumer electronics applications; and telephony equipment and associated applications.

TAIS provides sales, marketing and services for its wide range of information products in the United States and Latin America. TAIS is an independent operating company owned by Toshiba America, Inc., a subsidiary of Toshiba Corporation. Toshiba Corporation is a world leader and innovator in high technology, a diversified manufacturer and marketer of advanced electronic and electrical products. These products span from information and communication systems: digital consumer products; electronic devices and components; as well as power systems including nuclear energy; industrial and social infrastructure systems; and home appliances. Toshiba was founded in 1875, and today operates a global network of more than 730 companies, with 199,000 employees worldwide and annual sales surpassing U.S. $67 billion (FY2008). For more information on Toshiba’s leading innovations, visit the company’s Web site at


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