TechwareLabs has a review of the Seagate Momentus XT Hybrid Hard Drive
A quote from the article:
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The only SSD drives that are affordable to most end users are mearly 80GB SSDs which is pretty small and doesn’t leave much room for applications and/or games. There is a new option on the market provided by Seagate called Momentus XT which is a hybrid drive which has the storage of a SATA and SSD-like performance
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