Kingston Technology HyperX Plug n Play 16 GB Kit (2x8 GB) 1866MHz DDR3 PC3-15000 Non-ECC CL11 DIMM Desktop Memory KHX18C11P1K2/16 16GB Kit (2x8GB Modules) of DDR3 Desktop Memory Utilizes HyperX module with faster latency timing for higher performance and speed Specifically designed and tested for compatibility in various makes and models of desktop computers From the industry leader in PC memory Non-ECC 1866MHz 240-pin CL11 Unbuffered DIMM Backed by a lifetime warranty and free technical support