TwinMOS Speed Premium PC3200
 

The TwinMOS Speed Premium PC3200 memory modules are geared towards the
casual overclocker, who wants to get more out of his PC. Those modules are
built using TwinMOS/TwinMOS PC3200 chips which have been selected to allow
overclocking to DDR450 without any previous experience in overclocking.
While the tests are performed at TwinMOS, the price does not increase.

http://www.techpowerup.com/reviews/TwinMOS/SpeedPremium