Product Detail All new patented multiple support pressure vault bracket system, allow users adding pressure to the bracket system (40~70 lbs.), and have a more efficient and secure mounting.(1366/1156/775 only). Mirrored copper base increasingly upgrade the quality and the performance of the heatsink. Special bent winglet design, allows hot air to pass the heatsink more rapidly. Heatsink are all Black nickel plated to ensure the best quality and performance and could last for years. Six sintered heatpipe design, all heatpipes are nickel plated.To slow the oxidation deterioration to the heatpipe, to ensure longer usage and performance of the heatsink for the cpu. . The "THERMALRIGHT VENOMOUS-X BLACK HEAT SINK NICKELED" is best product for you. We recommended THERMALRIGHT VENOMOUS-X BLACK HEAT SINK NICKELED