4 pure copper heat pipes wear FIN technology. The heat pipe adopts double-row staggered design, the curved part is round and thick, and the top sintering process is exquisite. Increase the fin group, maximize the heat dissipation area, double heat conduction, faster heat dissipation, more effective 4 pin 12CM fan with temperature control , using hydraulic technology and PWM temperature control design, large air volume, quiet home,office,Internet cafes, server preferred products. Model: MT-4 double fan Product size: 148*127*100mm Product weight: 790g/pcs Fan size: 120*120*25mm Bearing: hydraulic bearing Speed: 900-1400+/-10% Noise: 18-20 dB(A) mute Air volume: 59 CFM Min Voltage: 12V DC Current: 0.32+/-10%A Power: 4-6W Life: 50,000 hours Support below 150W CPU for LGA1150/1151/1155/1156/1366/775 interface for Core I3/I5/I7/Pentium/Celeron/Xeon.(When installing the CPU heat sink need to add assembly base) Fit For AMD FM1/FM2,AM2/AM2+/AM3/AM3+/AM4 For Ryzen/Athlon/Phenom939/940/938,AMDX2/X3/X4/A10/A8/A6/A4/FX8/FX6/FX4 colour:Photo Color Material:PC+ copper Package Contents: 2 * cooling fan Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.