Bundle:2 items - Adapter&Power Cord/ Free USB Drive; Lenovo 20V 6.75A 135W replacement AC Adapter "PowerSupply"for Lenovo ThinkPad T520 Series: Lenovo ThinkPad T520 Quad-Core, Lenovo ThinkPad T520 4239-23U, Lenovo ThinkPad T520 4239-24U, Lenovo ThinkPad T520 4239-26U, Lenovo ThinkPad T520 4239-46U, Lenovo ThinkPad T520 4239-47U, Lenovo ThinkPad T520 4239-4CU, Lenovo ThinkPad T520 4239-4DU, Lenovo ThinkPad T520 4239-4EU, 100% Compatible with P/N: 55Y9317, 45N0052, 45N0053, 45N0054, 45N0055, 45N0056, 45N0057, 45N0058, 45N0059, 55Y9318, 55Y9319, 55Y9320, 55Y9321, 55Y9322, 55Y9323, 55Y9324, 55Y9325, 55Y9326, 55Y9327, 55Y9328, 55Y9329, 55Y9330, 55Y9331, 55Y9332, 57Y4622