This Power Charger will work like a charm with your Acer C720p Series Chromebook. A free power cord is also attached for your convenience. We do proudly declare that this AC adapter is Intocircuit part.Besides, our AC adapter is brand new and backed by a 30-day money guarantee. Please purchase with full confidence, if your original adapter is lost or broken, this would be your choice,1-year warranty and fast shipping.