Patriot Intel Extreme Masters Viper 3 Series DDR3 8GB (2x4GB) 2133MHz (PC3 17000) Memory Kit PVI38G213C1K Capacity: 8GB (2 x 4GB) Kit 240-Pin NON-ECC UDIMM Voltage: 1.5V Frequency: PC3-17000 (2133MHz) Timings: 11-11-11-27 Intended for all DDR3 platforms Feature Over clock: XMP Certified (Version 1.3)