OCZ has been selling a couple versions of its Vertex SSDs for a while now. The last one we talked about was the Vertex 2 with up to 480GB of storage. Two more Vertex 2 drives have been added to the family including a Vertex 2 Pro and a Vertex 2 EX model.
The EX and the Pro have the same performance capability with write speed up to 285MB/sec and read speed up to 275MB/sec. However, on the inside the two use different types of NAND flash.