Genuine Asus Transformer Book Trio TX201 chargers are listed below for all known models within this series, Asus models are often added to through the year, so if your full model number is not listed then simply check the series model Asus Transformer Book Trio TX201 charger, this will display the full specification of the charger, showing you outputs and wattage and check this matches the bottom of your Asus machine or old ac adapter.