Corsair Dominator 2 GB (2 x 1 GB) 240-Pin DDR3 2000Mhz Dual Channel Memory Kit Corsair's Cool new DOMINATOR CMXAF1 40mm tachometer-controlled variable speed fan included and can be set to move as much or as little air as necessary to keep your memory cool NVIDIA SLI-Ready system memory certification ensures compatibility and system stability with the rest of the SLI ecosystem components including NVIDIA nForce SLI motherboards This TW3X2G2000C9DFNV Features Corsairs patented DHX technology for superior heat dissipation and cool, reliable performance to keep your system running fast! This DOMINATOR Memory is the latest Corsair NVIDIA EPP 20 DDR3 module that is 100% compatible with NVIDIA DDR3 chipset motherboards 100% tested at 2000MHz in NVIDIA-based nForce 790i Ultra motherboard