6.3mm x 3.0mm
1. Make sure that the Current Adapter parameters marked as Output (voltage and current) match the Output parameters given on the Techie Adapter.
2. Check if the shape and size of the plug are appropriate.
The professional series Charger are intended to be efficient and durable. They have been equipped with a full range of electronic protections that provide accurate control of the charging parameters. They will charge your laptop not only quickly but also safely.