1,The four 6MM pure copper vacuum heat pipes are closely connected with the fins and directly touch the CPU, the heat can be quickly transmitted to the heat pipes and fins without any barrier. 2,The fin bending technology not only ensures the ventilation space between the fins, but also makes the heat conduction between the fins more smooth. 3,PWM speed control, the optical effect can realize the ARGB synchronization of the motherboard, provide over 16 million color variations to create a cool atmosphere. 4,Adopt removable fan blade for easy cleaning and maintenance. 5,Four bright color lamp beads light up the exclusive nameplate pattern on the top, increase the light effect ornament, block the sintering end of the heat pipe, and increase the integrity. Features: Four 6MM pure copper vacuum heat pipes are closely connected to the heat sink and directly contact the CPU, and the heat can be quickly transferred to the heat sink and heat pipe without any barrier. Fin bending technology not only ensures the ventilation space between the fins, but also makes the heat transfer between the fins more smooth. PWM speed regulation, optical effects can realize the ARGB synchronization of the motherboard, providing more than 16 million color variations, creating a cool atmosphere. Removable fan blades for easy cleaning and maintenance. Four bright light beads illuminate the exclusive nameplate pattern on the top, increase the light effect embellishment, block the sintering end of the heat pipe, and increase the integrity. All-metal fasteners increase hardware life and reduce transportation risks. Support LGA1200, LGA1700, 115X, AMD AM4 Specifications: Brand : Model: cr-1400 Fan interface :PWM 4Pin Optical interface :5V 3PIN ARGB pin (motherboard ARGB synchronization) Fan speed :900-2300rpm(±10 percent ) Air volume :15-36CFM Noise value :20-30.5Dba(Max) Input voltage :12V Radiator size :12.6 x 9.3 x 7.8cm or 4.96 x 3.66 x 3.07in Fan size :9.2 x 9.2 x 2.5cm or 3.62 x 3.62 x 0.98in Weight: Approx. 450 g or 15.87 oz Packing list: 1 x radiator 1 x set of mounting accessories 1 x radiator 1 x set of mounting accessories Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.