The Corsair XMS3 2GB Single DDR3-1600 CL9 Memory Module (CMX4GX3M2A1600C9) is a high-quality RAM module designed for desktop computers. With a total capacity of 2GB and a bus speed of PC3-12800 (DDR3-1600), this DIMM module offers fast and reliable performance for your computing needs. The Corsair brand is known for its durability and stability, making this memory module a great choice for upgrading your system's memory capacity.