Fujitsu increases hard disk data density

Fujitsu Ltd. started shipping samples of 60G-byte 2.5-inch hard disk drives (HDDs) with an areal density of 53.2G bpsi (bits per square inch) this month, the highest density available in this HDD class, the company announced last week.

The higher the areal density, the more data a HDD can store. A 53.2G bpsi areal density means that much more data can be put into one square inch of magnetic recording space, allowing 30G bytes to be stored on a single 2.5-inch platter.

Fujitsu's MHS Series 2.5-inch HDD only needs two platters for a total capacity of 60G bytes, the company said in a statement.

Other vendors that provide 60G-byte 2.5-inch HDDs include IBM Corp. and Toshiba Corp. However, IBM's Travelstar 60GH has four platters, with an areal density of 28G bpsi, according to information on the company's Web site. Its Travelstar 40GN disk drive, which has a 34G bpsi areal density, is only available in capacities up to 40G bytes, according to the Web site. Toshiba's MK6021GAS is a 60G-byte 2.5-inch HDD with two platters, but according to the Toshiba Web site, the drive's areal density is only 48.8G bpsi, slightly lower than Fujitsu's latest development.

The 2.5-inch HDDs are commonly used for mobile devices such as notebook PCs and portable HDD subsystems. The Tokyo company also expects its products to be used in digital audio players and consumer electronics products, it said.

Fujitsu's new drive is available in capacities of 30G bytes, 40G bytes and 60G bytes. It has a maximum rotational speed of 4,200 rpm (revolutions per minute), data transfer rate of 38.1M bytes per second and average seek time of 12 milliseconds, Fujitsu said.

Sample shipping began worldwide this month, the statement said.

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Kuriko Miyake

PC World
Show Comments

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Tom Pope

Dynabook Portégé X30L-G

Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.

Tom Sellers

MSI P65

This smart laptop was enjoyable to use and great to work on – creating content was super simple.

Lolita Wang

MSI GT76

It really doesn’t get more “gaming laptop” than this.

Jack Jeffries

MSI GS75

As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr

MSI PS63

The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Featured Content

Product Launch Showcase

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?