PCI-Express solid state drives are fairly new and there are only a handful of these drives available. These devices break the speed barrier on SATA 6GB/s drives by using the PCI-E interface. The most prevalent PCI-E solid state drives our OCZ’s RevoDrive series, but OCZ better watch out because the drive we are taking a look at today has a few features that the RevoDrive’s do not. The OWC Mercury Accelsior PCI-E Solid State Drive comes in capacities from 120GB to 960GB, is upgradable, and is both PC and Mac “plug and play” compatible. Want to learn more? Read on for our review!