Model?4020 Blower Fan 24V , Compatible Models: Motherboard: Ender-6_CR-5 Pro H(CT-380)_CR-5 Pro_CR-X_CR-X Pro_CR-10S Pro V2 Hotend: CR-10 Max_CR-2020_CR20 Pro_CR-10S Pro V2_Ender-7_CR-10 Max_CR-10S PRO_Sermoon D1