Model: CNPS9900 NT   Low-noise 120mm Green LED CPU cooler that has powerful cooling performance. :: Specification :: FHS Dimensions: 94(L) x 131(W) x 152(H) mm Weight: 730g Base Material: Pure Copper (Black-Pearl Nickel Plated) Dissipation Area: 5,402㎠ Heat Pipes: 3 x Ω-shaped Heat Pipes :: FAN Fan: PWM 120mm Fan Fan Dimensions: 120(L) x 120(W) x 25(H)mm Bearing Type: 2 Ball-Bearing without RC33P   RPM: 1,000rpm ~ 2,000rpm ± 10% Noise Level: 19.5dBA ~ 38.0dBA ± 10% with RC33P RPM: 800rpm ~ 1,300rpm ± 10% Noise Level: 18dBA ~ 28.5dBA ± 10% Main Functions: 4-Pin Connector (PWM Control, Auto Restart) Fan Speed Adjustment: PWM & VR Connector: 4-Pin Fan Controller: VR Fan Control (RC33P) PWM Duty Cycle: 25 ~ 100 ± 5% Rated Voltage: 12V Color: Gray Specific Gravity @23°C: 2.88 Thermal Resistance: 8 K/W Thermal Conductivity: 4.1W/mK Temperature Stability: -40°C ~ +150°C (-40℉ ~ +302℉) :: Compatible CPUs     Socket   CPU   CPU Compatibility Pentium D Intel 1155/1156 Core i7 Supports all speeds Core i5 Core i3 1366 Core i7 Supports all speeds 775 Core 2 Quad Supports all speeds Core 2 Duo Core 2 Extreme Pentium Dual Core Pentium 4 Celeron D AMD AM3 Phenom II Supports all speeds Athlon II AM2+ Phenom II Supports all speeds Phenom Athlon FX Athlon X2 Athlon Sempron AM2 Athlon FX Supports all speeds Athlon X2 Athlon Sempron 940 Dual-Core Opteron Supports all speeds Opteron Athlon FX 939 Dual-Core Opteron Supports all speeds Opteron Athlon FX Athlon X2 Athlon 754 Athlon Supports all speeds Sempron :: Images