This USB C SQ Adapter allows you to reuse your old Lenvo Slim Square Tip 65W or 90W or Higher Power ThinkPad, IdeaPad & Yoga chargers to charge your new USB Type C PD devices (100W Max) The Slim Tip to USB C Adapter is compatible with most USB Type C Devices, including MacBook Pro, Dell XPS, ThinkPad, Chromebook, Samsung S9, S8, Galaxy Tab, Pixel, XZ and many more The USB C SQ Adapter is USB-IF Certified & supports USB-PD (Power Delivery Protocol). It will automatically detect the device it is connected to and will adapt the voltage and current it supplies to ensure a fast but safe charging rate. It will protect and ensure the longevity of your battery unlike other adapters. USB-IF, CE & RoHS certified. The USB C Adapter features 6 circuit design protection - Automatic recovery, Voltage protection, Current protection, Short circuit protection, Safe charging & Radiation protection Input voltage: DC15-20.5V; Output: PD 5V/9V@1.5A /20V@5A; Maximum power: 100W (downward compatibi