There isn't any word about platter count on WD's site, but they state 9,5 mm height for the drive - while all of the 500GB drives I've seen so far featured 12,5mm height, direct consequence of the increased platter count. So either WD managed to pack 3 platters in a standard 9,5mm chasis, or the platters are actually two. I'm inclined to believe that the latter may be the case, given the modest power requirements of the 500GB model. If so, these would be the fastest 5400RPM drives out there.
Western Digital, a leading maker of hard disk drives (HDDs), has unveiled its first mobile 500GB hard drive that features standard form-factor and fits mainstream notebooks. In addition, the company began to offer 400GB HDD as well.
WD Scorpio Blue offers 400GB and 500GB capacities, features 5400rpm motor, 8MB of cache and Serial ATA-150/300. The manufacturer declares 5.5ms average latency as well as 12ms average seek time for the new hard disk drives. The unveiled Scorpio Blue features three 166GB platters, which are currently the largest in the industry of 2.5” hard disk drives. Nevertheless, the novelty’s height is just 9.5mm, whereas some of the drives with comparable capacity feature 12.5mm height.
The new Scorpio Blue features an array of WD’s exclusive technology’s aimed at improving performance, reducing noise and power consumption and protecting the drive from shocks.
"WD continues to provide the mobile market with high-capacity storage everywhere consumers and business professionals travel," said Jim Morris, WD's vice president and general manager of notebook storage. "Notebook system manufacturers continue to improve performance, while adding data-hungry features. The WD Scorpio Blue 400 GB and 500 GB hard drives provide the capacity needed to maximize the latest features and functions available in today's notebook computers, while relying on WD's exceptional reliability."
WD Scorpio Blue 500 GB and the 400 GB hard drives are shipping now through select distributors and resellers. Manufacturer's suggested retail price (MSRP) for the WD Scorpio Blue 500 GB is $219.99 and the 400 GB is $189.99.
Now that WD has 2.5” hard drives with 400GB and 500GB capacities, the company is highly likely to offer external HDDs featuring the new Scorpio Blue inside.