We think that cheaper SSDs are what will eventually drive the industry towards solid state storage as a de-facto standard. Here we see what makes the Onyx tick:

 OCZ Onyx SSD Stripped

The PCB itself is dominated by flash memory chips. The controller is the largest single BGA in the picture.

 OCZ Onyx SSD Stripped

Rear side of the PCB is empty.

 OCZ Onyx SSD Stripped
The Elpida DRAM works as the drive’s cache.

 OCZ Onyx SSD Stripped
Micron NAND flash chips onboard.