Device Type: AC Power Adapter for ASUS Laptop Output: 19V, 2.37A, 45W Input: 100-240V AC, 50/60Hz (Universal) Connector Tip: 4.0mm x 1.35mm Barrel (Small Tip, Center Positive) Compatible Part Numbers: ADP-45AW, ADP-45BW, ADP-45DW, AD883020, 0A001-00233300, 0A001-00691100 Key Specs: ASUS 45W AC Adapter, 19V 2.37A Output, 4.0mm x 1.35mm Small Tip, 100-240V Universal Input, Replacement for ADP-45AW/ADP-45BW, Over-Voltage/Short-Circuit Protection Usage: Powering Compatible ASUS VivoBook, ZenBook, EeeBook, and Transformer Book Models Requiring 45W and a 4.0mm Barrel Connector