Lenovo 54Y8999-RFB is a 65W Slim Tip AC adapter for supplying power to compatible Lenovo equipment. Its Slim Tip connector helps distinguish it from adapters with other connector types, so check the connection format required by your device.
This listing describes the unit as refurbished, B-grade. It is an AC power accessory intended to serve as a power adapter. Confirmed details are the Lenovo brand, part number 54Y8999-RFB, 65W rating and Slim Tip format.