It must be 65W and above, and the TYPE-C charging cable must have a decoy chip, or find the kind of charging cable that the brand cable claims to support. You can take a look at the products of Bex. You have purchased the USB-A to 5.25DC cable of Bex before and charged ASUS UX305UA ultrabook with a 65W gallium nitride charger. The customized TYPE-C to DC5.25 (with decoy chip) purchased on TAOBAO a year ago can also use 45W or 65W gallium nitride chargers. Without the decoy chip, the charging protocol doesn't work, even if the power is enough.