Yes, the 165W USB-C 4-Port PD GaN Charger can charge the 16-inch MacBook Pro (2021, M1 Max), but more slowly than the original 140W Apple adapter.

• Each USB-C port on the 165W USB-C 4-Port PD GaN Charger provides up to 100W.
• The 16-inch MacBook Pro can use up to 140W, so charging takes longer than with the 140W adapter.
• Use a certified eMark USB-C cable to get more than 60W.

For all confirmed devices, see the Device Compatibility article.