The drive we have for evaluation today is the OCZ Vertex 2 50GB, the successor to the popular Indilinx-based Vertex we looked at a year ago. As you may have guessed, the Vertex 2 uses the SandForce SF-1200 which is now used in several other drives from other manufacturers besides OCZ. But what makes the OCZ drive unique is a custom firmware from SandForce that is optimized for maximum IOPS (Input/Output Operations Per Second).