Genuine Original Lenovo ThinkPad Ultraslim SL300 SL400 T60 T61 X201 X301 T420 Series 90W 20V AC/DC Combo Adapter Charging Kit 41R4538 11S41R4538.
Lenovo Part Number: 41R4538 11S41R4538
Compatible Part Number: 41R4510 HU 10265-9017A
Compatible Models: Lenovo ThinkPad Ultraslim SL300 SL400 SL410 SL500 T60 T61 X201 X301 T420 Series