The Ultra Sleek Vortex 12 is a 120mm fan that is only 15mm thick! It offers near silence operation while providing excellent cooling. Its small size is perfect for crowded cases. SPECIFICATIONS Size: 120 x 240 x 15mm Bearing: Double Ball Bearing Weight: 91 grams Fan Speed: 400 - 1300 RPM Noise: 7 - 17 dBa Airflow: 54 CFM Static Pressure: 0.9 mmH2O Connectors: 4 Pin PWM Rated Voltage: 12 Volts Rated Current: 0.12 Max Amps Input Power: 1.44 Watts MTBF: 100,000h/35C or 60,000h/60C