This morning Seagate launched the Momentus XT Solid State Hybrid Drive series. These drives offer hybrid storage with Seagate Adaptive Memory technology, enabling the drive to be offered in capacities up to 500GB with SSD-like performance for a fraction of the cost of a traditional SSD. How did Seagate make this happen? They took last year's Momentus 7200.4 hard drive series and doubled the cache for the hard drive from 16MB to 32MB and then added 4GB of SLC NAND Flash that acts as the drive's SSD. Seagate then wrote some custom software code that they are calling Adaptive Memory technology that makes the SSD portion of the Momentus XT OS-, driver- and software independent. By doing this they claim they can make a drive that feels and acts like an SSD, but it is really a combination of both. Interested yet?  Let's take a look!