G.SKILL RipjawsX F3-2133C10D-16GXM 16GB (2 x 8GB) 240-pin DDR3 2133MHz Desktop Memory Model Tested Speed: 2133MHz(PC3 17000) Tested Latency: 10-12-12-31-2N Tested Voltage: 1.60v SPD Speed: 1333MHz Intel XMP (Extreme Memory Profile) Ready