The TWIN2X2048-6400 is a 2GB matched pair of DDR2 SDRAM DIMMs. This part delivers outstanding performance in the latest generation of 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 the low latencies of 5-5-5-12-2T. CORSAIR XMS2 2GB (2 X 1GB) PC2-6400 800MHZ 240-PIN DDR2 MEMORY SALE