The Toshiba MK4007GAL HDD 1.8-inch HDD packs 40GB on a single platter -- the largest single-platter capacity(1) yet achieved in the 1.8-inch form factor. This breakthrough technology sets new benchmarks for data density with the highest areal density currently on the market at 206 megabits per square millimeter(2) (133 gigabits per square inch). The 1.8-inch PMR HDD is now shipping in Toshiba's new Gigabeat F41, enabling the MP3 player to store up to 10,000 songs.

Scott Maccabe, of Toshiba Storage Device Division Says:

"Toshiba has started an exciting new frontier for the HDD industry by leading the race to achieve this revolutionary technology, which has been the industry's aim for more than 20 years. PMR opens the door to products we haven't even begun to imagine, by removing the technical barriers inherent to packing more data on an HDD. Providing greater storage capacity on mobile disk drives allows Toshiba to give system OEMs the tools they need for next-generation digital information and entertainment devices."

PMR: The Technology Achievement

Toshiba is the first company in the storage industry to commercialize PMR, providing unsurpassed recording density and high-operating reliability on its 1.8-inch HDD platform. The technology is based on a new magnetic disk structured to support perpendicular recording, a new high-performance perpendicular magnetic head, and disk and head integration technology that maximizes their combined performance.

Conventional longitudinal recording stores data on a magnetic disk as microscopic magnet bits aligned in plane. Although advances in magnetic coatings continue to improve data recording densities on HDD, when the densities become too extreme, the magnetic bits repulse each other due to in-plane alignment. Squeezing more bits on to a disk will eventually reach a point in which crowding degrades recorded bit quality. As such, HDD manufacturers face fast-approaching limits on storage capacities.

By standing the magnetic bits on end, perpendicular recording reinforces magnetic coupling between neighboring bits, achieving higher and more stable recording densities and improved storage capacity.

Product Availability: Now Shipping

Toshiba is currently shipping the 40GB MK4007GAL to OEM and channel partners. The company plans to apply PMR technology to its 0.85-inch HDD in 2006, increasing capacity to 6GB-8GB per platter and supporting Toshiba's efforts to pioneer the market for ultra-small form factor drives. For more information on Toshiba's PMR technology and available HDDs, visit www.sdd.toshiba.com.

Toshiba MK4007GAL Specs: