This ZM-CS4A clip by Zalman is designed for Intel Socket 1366 CPUs, which need serious cooling power. The Zalman ZM-CS4A clip works with the Zalman CNPS9700 LED CPU Cooler, and the Zalman CNPS9500A LED CPU Cooler. You will need a compatible Socket 1366 CPU and motherboard.
For installation of CNPS9700/9500 series coolers into Socket 1366.
Zalman affixes a Computer Noise Prevention System (CNPS) mark to all components used for noiseless computers.