Product information: 4GB DDR2 XMS2 Dominator DHX PC2-6400C5 TwinX (2x2GB)The Dominator Series Twin2X4096-6400C5 DHX is a 4096 MByte matched pair of DDR2 SDRAM DIMMs built using Corsair’s latest high performance heat sink with Dual-Path Heat Xchange (DHX) technology. This part delivers outstanding performance in the latest generation of dual-channel DDR2-based motherboards. It has been tested extensively in multiple DDR2 motherboards to ensure compatibility and performance at its rated speed. This memory has been verified to operate at 800MHz at latencies of 5-5-5-18. The Twin2X4096-6400C5DHX comes with Enhanced Performance Profiles (EPP), the open standard for performance module SPD’s jointly developed by Corsair and NVIDIA. EPP SPD’s on Corsair modules allow users to automatically configure EPP enabled motherboards with aggressive memory performance settings, for maximum memory and system performance. Performance of these modules incorporating DHX can be further enhanced by using the optional Dominator Airflow Fan, for even more cooling and protection.