The low noise AK-959 uses a high engineered multi directional heatsink with copper core and bi-ped fins providing cost effective efficient CPU and motherboard cooling. The PWM fan is regulated automatically by CPU usage so under normal PC work load the fan speed is low ensuring quiet computing but extra performance is available when needed.  Intel approved pushpins ensure easy installation, reliable retention and maximum compatibility on both LGA775, LGA115X and LGA1200 platforms without any mounting adjustment, pushpins will automatically slide into correct position.  AK-959CU is designed to work with CPU’s up to 115W but greater cooling efficiency can be attained with efficient case airflow. Pre-applied high performance thermal compound ensures clean and easy installation.  • High engineered aluminium heatsink with copper core • Dual Intel mounting • Bi-ped fins maximise heat dissipation  • Low noise PWM fan  • Push pins provide reliable retention and easy mounting  • High performance thermal interface pre-appliedSocket type Intel LGA775, LGA1150, LGA1151, LGA1155, LGA1156, LGA1200 Cooler dimensions 95 x 95 x 62 mm Heatsink material Aluminium fins and copper core Weight 317g Installation Push pins Fan dimension ∅92 x 25 mm Fan speed 600 - 3000 RPM (PWM controlled) Max airflow 56.81 CFM Max air pressure 4.05 mm H2O Noise level 17.2 - 30.54 dB(A) Current rating 0.26A Voltage rating 12V DC Bearing type EBR Fan life expectancy 40,000 hours Fan connector 4pin PWM Product code AK-959CU