Shown is a brand new 100% compatible Lenovo ac adapter. This replacement ac adapter is 170 watt and has a USB connector (shown in photo). It is 8.5 amp and 20 volt. The power cord is included.
Comp. Models (s): Thinkpad W530, W541, W550S
Part Number (s): 4X20E50574, ADL170NLC3A, ADL170NLC2A, 36200320, 36200317, 0A36227, 45N0113, 45N0373, 45N0374, 45N0371, 45N0372, 45N0375