Kingston's KHX1600C9D3K4/16GX is a kit of four 512M x 64-bit (4GB) DDR3-1600 CL9 SDRAM (Synchronous DRAM) 2 Rx 8 memory modules, based on sixteen 256M x 8-bit DDR3 FBGA components per module. Each module kit supports Intel XMP (Extreme Memory Profiles). Total kit capacity is 16GB. Each module kit has been tested to run at DDR3-1600 at a low latency timing of 9-9-9-27 at 1.65V. The SPDs are programmed to JEDEC standard latency DDR3-1333 timing of 9-9-9 at 1.5V. Each 240-pin DIMM uses gold contact fingers & requires +1.5V. Key Features 16GB (4x 4GB) DDR3 for AMD, Intel Dual processors & new 2nd Generation Intel Core platforms 1600 M Hz 9-9-9-27 latency Intel XMP (Extreme Memory Profile) Support