Patriot Gamer 2 Series, Division 4 Edition 240-Pin DDR3 SDRAM 16GB (4x4GB) 1333MHz Enhanced Latency 16 Quad Channel Kit (PC3 10666) PGQ316G1333ELQK Extreme Performance PC3-10666 (1333MHz) Enhanced Latency (9-9-9-24) Voltage: 1.5V XMP 1.3 Ready Equipped with an extruded aluminum shield to provide improved cooling 100% Tested and Verified RoHS Compliant Only compatible with Intel X79 chipsets