ARyee 19V 3.42A Laptop Charger Compatible with Acer Chromebook 15 14 13 11 R11 CB5-132T CB3 CB5 CB5-571 C720 C740, Acer SF113-31 SF114-31 SF114-32 SF314-51 SF314-52 SF314-52G SF314-54(3.0 x 1.0mm)