G.SKILL Ripjaws Z Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900) Desktop Memory Model F3-14900CL9Q-16GBZL Cas Latency: 9 Voltage: 1.5V Multi-channel Kit: Quad Channel Kit Timing: 9-10-9-28 Buffered/Registered: Unbuffered Features: Quad channel memory designed for Intel LGA2011 and X79 systems Compatible with Intel LGA1155 and AMD Llano/AM3+ platforms Intel XMP support for 2nd and 3rd Generation Intel Core Processors