About this item 65W power, 45W backward-compatible Safe for 45 W ultrabooks; your device only draws what it needs. Correct connector 3.0×1.1 mm thin barrel; not USB-C and not 5.5×1.7 mm. Made for ultrabooks & 2-in-1s Works with Aspire S7/S5/S3-391 (ultrabooks), Aspire R13/R15 (convertibles), Aspire P3 tablet PC, Iconia W700/W700P Windows tablet, and V3-371/V3-372 light notebooks (all small-tip 19 V). Reliable & travel-ready 100240 V worldwide input; protections: OVP/OCP/OTP/SCP. Parts you may search Replaces PA-1650-80, ADP-65KB, A11-065N1A, A13-045N2A, NP.ADT11.00F and other small-tip 45 W/65 W references (see A+). Dimensions: 7.48 x 4.96 x 1.85 inches.