Inner diameter: 5.5 mm
Outer diameter: 7.9 mm
7.9*5.0mm connector Female Converter to Square Male connector
Current: 3.25A or 4.5A you can use it with 65w/90w
Note,AC charger is not included
Package includes: 2pcs connection adapter
Current: 3.25A or 4.5A you can use it with 65w/90w