Bearing type: Sleeve (oil bearing). Fan Speed: 5v/12v 8000RPM ± 5% RPM. If you have other needs, you can customize other connectors for more than 50PCS.
3cm 3007 Brushless Fan DC 3.7V 5V 12V 24V oil Bearing Cooling 30X30X7mm 2pin
for PFB1224UHE DC BRUSHLESS Fan, DC 24V 2.40A 12CM Size :120×120×38mm,2-pin 2-Wire Inverter Cooling Fan.
2Pcs Brushless Fan DC 24V Cooling Fan 4010 0.06A 40mm x 40mm x 10mm 3D Printer
41x10mm Cooling Fan 3500-9800RPM Mini Round Silent Brushless Fan DC 3.7/5/12/24V
2006 High Speed Brushless Fan DC 5V 3P Silent Cooling Fan for Notebook-10000RPM
DIY Brushless Fan DC 12V 0.23A Cooling Fan for 3D Printer Accessories