G.Skill RipjawsX F3-2133C9Q-16GXL 2133 MHz 4x 4 GB DDR3 @ techPowerUp
 

T-Topology on nearly every Z78 motherboard makes filling all four of your motherboard's memory slots an interesting option. G.Skill's new G.Skill F3-2133C9Q-16GXL kit uses four sticks, comes in red, and has great heatsink compatibility, but does using single-sided sticks hurt performance?

http://www.techpowerup.com/reviews/G...2133C9Q-16GXL/