FOR 20Pcs/Lot DC 12V 3010B 30x30x10mm Dual Ball Brushless Axial Micro Cooling Fan — 30mm (3cm) Mini 3D Printer Cooler with 1M Cable

Pack of 20 DC 12V micro cooling fans, model 3010B. Each fan measures 30x30x10mm (30mm / 3cm) and uses a dual ball bearing, brushless axial design. Supplied with a 1M cable, these compact 30mm fans are intended for use as mini coolers in 3D printers and other small electronic cooling applications.