You can get one AC Charger and power cable, Within 30 days of purchase, we offer a no reason to returns and refunds. Especially, 12 Months warranty and friendly customer service. Built-In safety protections, Multiple protections against short circuiting, overvoltage, overcurrent, and internal overheating .All of our product lines are put through rigorous quality control procedures to ensure safe, reliable operation for years to come. We guarantee our products will charge your device as efficiently as the original charger, or any other replacement. Compatibility ThinkPad Helix (1st Gen), S Series- S431, S440, S531, S540, T Series- T431s, T440, T440p, T440s, T450, T450s, T540p, T550, W Series- W540, W541, W550s, X Series- 11e, X1 Carbon (3rd Gen), X240, X240s, X250, Yoga- Yoga 12 (S1), Yoga 14 (S3), Yoga 15 (S5). Input:100-240V 50-60Hz.Output: 20V 8.5A 170W Outlet: 3-prong Connecter size: USB Rectangular shape(pin). Compatibility ThinkPad 11e Series, 11e 1st Gen (AMD Windows), 11e 1st Gen (Chromebook), 11e 1st Gen (Intel Windows), 11e 2nd Generation (Intel Windows), E Series- E440, E450, E455, E540, E550, E550c, E555, L Series- L450.