2GB (2x1GB) DDR2 XMS2-6400 5-5-5-12
By Corsair

Corsair Memory is specifically designed for rock-solid stability in demanding applications. Data lines are carefully engineered for noise immunity, clock lines are optimized for minimum skew. All modules use JEDEC-compliant six-layer. ... 

Core i7 6GB Kit (3x2GB) DDR3 1333MHz XMS3 Classic 9-9-9-24, 1.50V
By Corsair

The XMS Series TR3X6G1333C9 is a 6144MByte kit of DDR3 SDRAM DIMMs built using Corsairs high performance heat sink. This part delivers outstanding performance in the latest generation of X58 DDR3-based motherboards. It has been tested extensively in popular X58 motherboards to ensure compatibility and performance at its rated speed. ... 

2GB (2x1GB) XMS2 DDR2-8500 5-5-5-12
By Corsair

Pushing performance specs generates heat, and that can compromise reliability and component life. The advanced cooling ability of Dual-path Heat Xchange (DHX) heat sinks keeps your memory safe and reliable even as you push it to the limit. Under the name XMS2 DOMINATOR, this DHX technology will be showing ...