1. Material: copper-aluminum combination 2. Bearing type: hydraulic bearing 3. Air volume: 48CFM Min 4. Bearing: hydraulic bearing 5. Voltage: 12V DC 6. Current: about 0.23 7. Socket: either three pins or four pins on the motherboard 8. Life: 50000 hours 9. Noise: 18-20db(A) silent 10. Double tower design, double heat dissipation 11. The fan is designed in the middle of the heat sink, making full use of the air inlet and outlet 12. Solve the CPU heat dissipation and avoid computer game crash 13. Fan: 90x90x25 mm 14. Bottom contact: 52x45mm 15. Length: Single fan 88mm, dual fan 110mm, triple fan 135mm 16. Height: 135 mm 17. Weight: about 150 grams Tips: We sincerely hope that you can leave your Comment and share your experience of using the product so that more friends can know about it .