OCZ PC2-5400 EB Platinum Edition
 

It appears as though DDR2 memory is becoming more and more mainstream. It
also appears OCZ, with its EB Platinum Edition, is serious about staking
the claim of performance in this arena. With CL timings that you would be
hard pressed to match, especially at PC2-5400 speeds, looks like the stake
is driven deep.

http://www.viperlair.com/reviews/memory/ocz/DDR2/5400/