The OCZ PC2-9200 Flex II 4GB memory kit steps up the game for 4GB memory kits. No longer does 4GB have to be associated with slow and loose timings. Focusing solely at the performance available, this kit really does give you the flexibility to choose between tight timings or high frequencies with appreciable read, write, and copy bandwidth across the board. Factor in the overclocking, Extended Voltage Protection, and the Xtreme Liquid Convection heatsink and you've got a well rounded memory kit...