The Kingston 16GB KVR1333D3E9SK4/16G is a set of four DDR3 SDRAM DIMM modules with a total capacity of 16GB. Each module has a capacity of 4GB, making it suitable for server applications requiring high performance and reliability. This product is backed by a lifetime manufacturer warranty, ensuring it for as long as you need it. With a bus speed of PC3-10600 (DDR3-1333), it offers fast data transfer rates for efficient server operation.