The FlexXLC memory arrived in the standard OCZ clamshell package. Both modules are visible through the front of the package along with a specs sticker at the very bottom. The back of the package has a small paragraph describing the FlexXLC technology and a diagram of how the system is designed to work. A complete list of specs as well as a copy of this diagram can be seen below, borrowed from OCZ's website.
Looking over the specifications list, we see that this memory operates at a very high frequency of 1150 MHz at moderate timings of 5-5-5-18. Provided this kit is a good overclocker, we could perhaps rival some of the top DDR2 kits on the market – or even surpass them. This Flex kit operates at 2.3v but can safely be pushed to 2.35v without voiding the lifetime warranty. These modules also have EPP (Enhanced Performance Profiles) which is basically like factory overclocking. 95% of enthusiasts won't use this, as they will want to fine-tune the modules to their linking, but it is nice for those who are still new to the hardware scene.
The FlexXLC technology is truly a work of genius. For the first time ever, users are given the “flex”ability of cooling their memory via traditional passive air cooling or taking things one step further and watercooling the modules. Having the option to cool your memory two different ways is nice, although certainly not a necessity. The modules should not get hot enough to require watercooling, but hardcore h2o guys will appreciate the ability to shave off a few degrees whenever possible.