5Pcs/Lot 12V Brushless DC Turbo Blower Fan — 40x40x20mm (4cm) Dual Ball Bearing, 100cm Wires for 3D Printer Cooling

Pack of 5 compact turbo blower fans designed for 3D printer and electronics cooling. Each fan is a 12V brushless DC unit built with dual ball bearings for extended life and stable operation. Physical dimensions: 40x40x20mm (4cm), also referenced as 40x20mm form factor. Includes 100cm wires on each fan for flexible installation and routing. Ideal as a 4cm (40mm) blower cooler replacement or upgrade; purpose-built as a turbo cooler 3D printer blower fan. 5Pcs/Lot, brushless DC, dual ball, 100cm wires, 40mm sizing for reliable, continuous cooling.