Noctua NH-U14S CPU Cooler Noctua NH-U14S CPU Cooler - Core i3/i5/i7 Socket 2011/1150/1155/1156/AM2+/AM3+/FM1 Heatsink & Fan, Copper Base / Aluminum Fins / 6 Heat Pipes, 300-1500RPM 140mm Fan, 19.2-24.6 dBA. Retail Box - (6Y)