Lenovo 170W Replacement Slim Ac Adapter For: Thinkpad W540 W550S Thinkpad E440 E450 E555 S431 T540P X240 X250 Yoga 15 S5 P n 4X20E50574
Input:100-240V / 50-60Hz
Output: 20V-8.5A-170W
Compatible Model: 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, Multimode- ThinkPad Helix (1st Gen) S Series- S431, S440, S531, S540 T Series- T431s, T440, T440p, T440s,... more details