Power Adapter Extension Cable for 140 watt charger for 2021 Macbook Pro

worldtruth wrote:

Will there be a power adapter extension cable with a duckhead rated at 7A to use with the 140 watt charger?

The label on box for the power adapter extension cable says it is "Compatible with MagSafe 2 power adapters and 10W, 12W, 29W, 61W, and 87W USB power adapters." This differs what it says on the website regarding the power adapter extension. As a customer, I am inclined to follow what it says on the box label, plus the duckheads are rated differently - 2.5A for the Magsafe 2(same as the power adapter extension cable) and 7A for the 140 watt charger and its duckhead(model A1555)

Thank you for your consideration of this feedback. I appreciate it.

Aloha, kenison

The 3-prong grounded extension cable is interchangeable.

Power Adapter Extension Cable - Apple

worldtruth wrote:

Thanks for your reply, I appreciated it. Yes, I totally agree, the duckhead from the 3-prong extension cable fits the 140 Watt charger. What is concerning and where I have a question is the box label does not list the MagSafe3 charger 140 Watt as compatible and also the amperage ratings for the duckheads are different - 2.5A vs 7.0A.

right.

It is an extension cord—they are universal.

I did ask an Apple specialist and he said that the cable had not changed in the last few years and that the extension cords from the older models were compatible. (not the blocks just the extension parts)

These cords are all good through at least 13 Amps.

Or to get the official answer, contact Apple Support directly.