The ADATA S596 128GB SSD featuring a JMicron JMF612 controller has shown up on our doorstep for a test run. We've seen this controller before in other models and have a good idea what to expect but changes to the firmware could make a significant difference in the overall drive performance. Read on to see how it fares against other big name SSD brands!

After provisioning and the nominal space set aside by Windows, we see the yield left for user space on the ADATA S596 is about 112GB which is not unusual for a drive with 128GB of onboard NAND. Provisioning assists with performance preservation and drive maintenance such as using these as replacements for blocks that eventually go bad. Performance on the ADATA S596 is actually a little better than we expected as it generally posted better results than other JMicron drives we have tested and rivaled drives with other controllers in some tests...