Specifications, Pricing and Availability
The biggest selling point of this drive is obviously the height, 7mm. Until now the standard has been 9.5mm for notebooks. In the enterprise market there are also 2.5" form factor drives that are 12 and 15mm thick, but most of those have been SAS drives and not compatible with notebook drives 5v power requirements. The 7mm standard is backwards compatible with 9.5mm thick drives, but is being positioned to take over the low cost segment of the market.
With a reduced size all current 7mm drives are limited to a single platter. This is an area where Hitachi is currently leading the competition since Seagate's highest capacity 7mm thick drive is only 250GB. Hitachi's new Z Series comes in 160, 250 and 320GB capacity sizes.
The Z Series is divided into two main categories; Z5 the 5,400 RPM models and Z7 for 7,200 RPM drives. Today we are going to focus on the Z5K320, a 320GB drive that has an 8MB cache buffer and a very low acoustic rating.
After a quick search I was unable to find the Hitachi Z5K320 at Newegg, but Provantage had stock available for 50.72 USD at the time of writing. For comparison we found Seagate's 250GB 7mm drive online for 60 USD at eCost.com. This puts Hitachi's Z5K320 in a nice position since it has higher capacity and costs less than the main competition.
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