UMLIFE 3D Printer Brushless Cooling Fan - 4PCS 40x40x10mm

This helps to prevent the heat from the nozzle traveling too far upwards. Without this fan, the filament could get soft above the heater block, which leads to extrusion issues and degradation of print quality. Sufficient for use in 3D printing Equipped to properly cool your 3D printers extruder assembly, this extruder fan is compatible with the MakerBot Replicator 2 and MakerBot Replicator 2X. Also compatible with Flashforge, CTC, and other 3D printer types. Specification: Tubro Fan: Speed: 6200RPM Noise: 22dBA Working Current: 0.06A / 0.08A Air Flow: 2.8CFM Square Fan: Speed:6000RPM10%RPM Noise:27dBA Working Current: 0.06A/0.08A Air Flow: 5.7510% CFM Power: 0.96W.