Corsair one of the leading manufacturers in memory has brought to you the corsair xms2 4gb pc6400 ddr2 800mhz memory upgrade. This dimm is capable of increasing your computers performance and capabilities. The twin2x4096-6400c5 g is a 4096 mbyte matched pair of ddr2 sdram dimms. 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 verifed to operate at 800 mhz at the low latencies of 5-5-5-18.