Patriot Viper Xtreme Performance 8 DDR3 2133 (PC3 17000) Computer Memory PXD38G2133C11K Extreme Performance PC3-17000 (2133MHz) Enhanced Latency (11-11-11-30) Voltage: 1.65V XMP Ready Equipped with an extruded aluminum shield build around a copper core to provide improved cooling 100% Tested and Verified RoHS Compliant Tested on Intel P67 platform