2 pcs Gdstime 40mm 4010 Blower Fan 5V 12V 24V 40x40x10mm 4cm Sleeve/Ball Bearing Cooling Fan DC Turbo Blower Fan for 3D Printer
https://www.vogueparade.com/shopping/EN/200001076/1/1005001665565445/2-pcs-gdstime-40mm-4010-blower-fan-5v-12v-24v-40x40x10mm-4cm-sleeveball-bearing-cooling-fan-dc-turbo-blower-fan-for-3d-printer//