The Corsair XMS 2GB DDR-400 PC3200 CL2 CMX1024-3200C2 memory modules consist of two 1GB DIMM modules designed for high performance in desktop computers. With a bus speed of PC-3200 (DDR-400), these DDR1 SDRAM modules offer a total capacity of 2GB, making them ideal for upgrading or replacing existing memory modules in order to improve system performance and stability. The memory modules also feature ECC memory technology for error correction, ensuring reliable operation. With a lifetime manufacturer warranty, this Corsair XMS memory kit is a dependable choice for enhancing your computer's memory capacity.