Rosefray 20V 4.5A 90W AC Adapter Laptop Charger for Lenovo Ideapad U430 U530 Z710; Thinkpad Helix X1 Carbon L440 T440 T440p T440s T540p; G500 G505s G510 G700; Chromebook N20 N20p 11e X11e X150e Input Voltage : AC 100-240V (Worldwide AC Input);Output : 20V 4.5A 90W Ship from CA,USA;Compatibility For:Lenovo Ideapad U430 U530 Z710; Thinkpad Helix X1 Carbon L440 T440 T440p T440s T540p; G500 G505s G510 G700; Chromebook N20 N20p 11e X11e We focus on providing quality power products and excellent customer service . Rosefray Products are CE, FCC, RoHS certified for safety. Warranty: 30 Days Money Back Guarantee / 24 Months - Free Exchange (Rosefray pays for shipping) / Please contact us with any questions or concerns - we are here to help! Rosefray ac adapters manufactured with the highest quality materials and include laptop safeguard features against incorrect voltage, short circuit, internal overheating. 100% compatibility with the original.