A: 1 90,000 rpm single motor. B: 1 12V 90,000 rpm motor + driver board. D: 1 12V 110,000 rpm high-power single motor. F: 1 12V 130,000 rpm high-power single motor. Motor type: motor, brushless motor. High- for zinc alloy, pure copper coil, finely carved fan blades, imported ball bearings.
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