Travel Cord Organizer Compatible with Apple Macbook Air Charger, Protective Case for USB C 29W 30W Power Adapter, Macbook Air 12'' 13'' Charging Cable Management Cord Winder A1540 A2164 A1882 Macbook you can see the ripple

you can see the ripple voltage on VBUS

【Premium Quality Flame-Resistant PC Material】- UL/CE/RCM/PSE certified exclusive circuit design and premium quality high temperature resistant

18 watts USB-A QC3

the meter reports the voltage & current that the charger supports

Travel Cord Organizer Compatible with Apple Macbook Air Charger, Protective Case for USB C 29W 30W Power Adapter, Macbook Air 12'' 13'' Charging Cable Management Cord Winder A1540 A2164 A1882 Macbook you can see the rippleCORD ORGANIZER The case will help you wrap your charging cable, thus making your desk look neat and organized, and saving space for your bag. You don't have to worry about the trouble caused by the charging cable being too long and easy to knot. PROTECTION Environmentally friendly, non toxic and odorless material to protect the Charger from break, scratches or dirt. It looks new for a long time. COMPATIBILITY For MacBook Air 12 inch 13 inch original