This is Creality 4010 Hotend Blower Fan.
The 24V 4010 Cooling Fan for 3D Printer is Small but powerful exhaust cooling is designed for the 3D printer. It has two pin connector to connect in a printer controller. Fan operates at 24V supply and operates automatically by the Printer controller system. It is used to mount on extruders to maintain the temperature of an extruder for seamless printing.
1 x Creality 4010 24V Hotend Blower Cooling Fan