Patriot Viper PVE2416G266C6K 16GB No Heatsink (2 x 8GB) DDR4 2666MHz DIMM Retail System Memory The Viper Elite II DDR4 memory modules are designed with innovative upgrades to update our current Viper Elite line.The Viper Elite II lineup utilizes a Viper red aluminum heatshield for extreme overall thermal conductivity to ensure optimal performance. The Viper Elite II incorporates DDR4 technology which is ideal for: gaming content creation and productivity applications.Experience smoother performance thanks to the higher available capacities and clock speeds of our Viper Elite II modules. Our Viper Elite II DDR4 kits are tested thoroughly and validated for enhanced system compatibility. Built for the latest Intel and AMD? platforms the Viper Elite II provides solid performance reliable stability for the most demanding computer environments and high-quality assurance. The Viper Elite II DDR4 memory s Memory Capacity 16GB (2 x 8GB) Memory Type DDR4 Module Type DIMM Memory Speed DDR4-2666MHz Pin Configuration 288-pin Registered/Unbuffered Unbuffered Error Correction Non-ECC CL-tRCD-tRP-tRAS 19-19-19-43 Heat Sink No Working Voltage 1.2V