Toshiba presents 80GB 1.8-inch HDD with perpendicular recording

Posted on Tuesday, August 16 2005 @ 16:41 CEST by Thomas De Maesschalck
Toshiba today shipped its first batch of 1.8-inch HDDs with perpendicular magnetic recording. These small HDDs are primarily used in consumer electronic devices like the Apple iPod and Toshiba's new ones offer a capacity of 40GB to 80GB.

The MK4007GAL HDD 1.8-inch HDD packs 40GB on a single platter -- the largest single-platter capacity 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 (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.

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.

Model name MK8007GAH MK4007GAL
Capacity 80GB 40GB
Number of platters 2 1
Number of heads 4 2
Average seek time 15ms
Data transfer rate Ultra DMA/100
Rotational speed 4,200RPM
Interface ATA-6
External Dimensions 54 x 78.5 x 8mm 54 x 78.5 x 5mm
Weight 62g 51g
Shock resistance Operating: 4,900m/s2 (500G: 2msec)

Non-Operating: 14,700m/s2 (1,500G: 1msec)

About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

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