G.SKILL Ripjaws Z Series 32GB (4 x 8GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000) Desktop Memory Model F3-2133C9Q-32GZH Cas Latency: 9 Voltage: 1.6V Multi-channel Kit: Quad Channel Kit Timing: 9-11-11-31 Buffered/Registered: Unbuffered Heat Spreader: Yes Features: Quad channel memory designed for Intel LGA2011 and X79 systems Compatible with Intel LGA1155 and AMD AM3/Llano/AM3+ platforms Intel XMP support for 2nd and 3rd Generation Intel Core Processors