Kingston Technology HyperX Beast Series 16GB Kit (2x8GB) 1866MHz DDR3 PC3-14900 CL10 XMP DIMM Desktop Memory KHX18C10AT3K2/16X 16GB Kit (2x8GB) of DDR3 Non-ECC 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 CL10 Unbuffered DIMM Backed by a lifetime warranty and free technical support