Corsair Dominator Series 4 GB DDR2 Kit 1066 MHz CL5
 

The Corsair Dominator Series of 4 GB kits does not only manage to deliver a great overclock but also offers exceptional performance at lower speed settings, making this a kit for almost every scenario. Its attractive price of $125 is a very affordable way to get into the 4 GB club while still being able to run serious overclocks.

http://www.techpowerup.com/reviews/C...X4096-8500C5DF