Safety First: This product is certified by UL as its premium quality and safety system have passed UL's rigorous tests. Flawless Compatibility - Fit for Asus Vivobook 15 F510U F510UA F510Q F510 F510QA F512DA F512D F512FA F512F F512JA F512J F512 Laptop Power Cord Supply - It will not work properly If your device requires over 45W. Service and Support: 30 Days No-hassle Return and 12-Month Warranty. Output and Wattage: 19V-2.37A 45W (Works with 19V-1.75A 33W laptop). What you get:1 x AC Adapter.