G.SKILL Ripjaws Z Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000) Desktop Memory Model F3-17000CL11Q-16GBZL Cas Latency: 11 Voltage: 1.6V Multi-channel Kit: Quad Channel Kit Timing: 11-11-11-30 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