1.1x3.0 x7.5mm tip Acer 65W AC adapter kit will work on Chromebooks and Aspire R13, Switch 12 Alpha, TM B1 Series, TM X349, TMX3310, TMX3410, TMP614, TMP215(G) Also S7, W700, Chromebook 11 CB3-111, 13 CB5-311, Acer Aspire V3-3x1, C730E,C731,C738T, TMP 236-M, TMP 238-M, TM B117, TM X349, R13 (SKI 2), Switch Alpha 12, R7-371T & Aspire One AO1-131,Acer Chromebook 11 CB3-111, 13 CB5-311, Acer Aspire V3-3x1, C730E,C731,C738T, TMP 236-M, TMP 238-M, TM B117, TM X349, R13 (SKI 2), Switch Alpha 12. Spin3 Spin 5 also R7-371T & Aspire One AO1-131, Chromebook C731 Includes NZ Power Cord