4GB DDR3 1600MHz Dual Channel kit, rated CL6, 6-8-6-24 at 1.6V. PC3-12800 kit, from the G.Skill PI Series with cool new-style PI heatsinks for best possible heat dissipation.
Two matched 2GB DDR3 modules per 4GB kit, pretested in a wide range of motherboards for best compatibility.
240-pin DDR3 memory, non-ECC, suitable for desktop computer systems.
Backed by lifetime warranty offered directly by G.Skill.
Pre-tested in the following motherboards:
ASUS Maximus III Formula
ASUS Maximus III Gene
ASUS SABERTOOTH 55i
ASUS P7P55D-E Premium
ASUS P7P55D-E Deluxe
ASUS P7P55D-E EVO
ASUS P7P55D-E Pro
ASUS P7P55D-E
ASUS P7P55D Premium
ASUS P7P55D Deluxe
ASUS P7P55D EVO
ASUS P7P55D Pro
ASUS P7P55D
MSI P55-GD65
MSI P55-GD80
Gigabyte GA-P55A UD4P
Gigabyte GA-P55A UD5
Gigabyte GA-P55A UD6
Gigabyte GA-P55 UD4P
Gigabyte GA-P55 UD5
Gigabyte GA-P55 UD6
Please check the G.Skill website
here for updated lists of qualified motherboards.