Feature: 1. OUTSTANDING COOLING EFFECT: CPU air cooler adopts direct connection technology, 4 heat pipes provide excellent cooling effect, and fin array ensures minimum airflow resistance. 2. HYDRAULIC FAN: The CPU cooler utilizes a hydraulic bearing fan with a fan speed of 2000±10% for high airflow and fast heat dissipation. 3. APPLICATION: CPU air cooler for intel 775 1150 1151 1155 1156 1200 1700 1356 1366 for AMD AM1/AM2/AM2+/AM3/AM4. 4. QUIET DESIGN: Computer CPU cooling fans only 22dB noise, enjoy computer operation without interference. 5. EASY INSTALLATION: 4 copper heat pipes CPU cooler is easy to install, upgrade and remove the fan with ease, simple operation. Specification: Item Type: CPU Cooler Material: Copper, Aluminum Lighting Effect: No Lighting Interface Type: 3pin Fan Size: Approx. 90 x 90 x 25mm / 3.5 x 3.5 x 1.0in Voltage: 12 VDC Rotation Speed: 2000±10% Noise: 22 dB Airflows: 48CFM Lifespan: 50000 hours Bearing Type: Hydraulic Compatible with: for Intel 775 1150 1151 1155 1156 1200 1700 1356 1366, for AMD AM1/AM2/AM2+/AM3/for AMD3/AM4. Package List: 1 x 9CM CPU Cooler1 x Bracket4 Sets x Plastic Nails (One Black and One Transparent as a Set)1 x Thermal Grease Pack