CoreParts 170 W Lenovo Adapter (20 V, 8.5 A, square tip) – compatible with many Lenovo ThinkPad models. You may also findoriginal Lenovo adapters labeled as 170 W / 20 V / 8.5 A with part numbers like45N0370, ADL170NLC3A, ADL170NDC3A, PA-1171-71 etc.
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