Power Adapter Extension Cable compatible

françois20 wrote:

Power Adapter Extension Cable compatible

I own a 13" Macbook Pro (Early 2015) with a Power Adapter Extension Cable. I have just purchased the 14" Macbook Pro (2021) and I am wondering if I will be able to use the Power Adapter from my old Macbook Pro instead of purchasing a new one? Are they compatible?

Yes the extension cable itself is universal—replacing the duckhead.

The 1.8-meter Power Adapter Extension Cable is an AC extension lead that provides extra length for your Apple power adapter. Use it with MagSafe and MagSafe 2 power adapters, 10W and 12W USB-A power adapters and 29W, 30W, 61W, 67W, 87W, 96W, and 140W USB-C power adapters.

Power Adapter Extension Cable - Apple

Apple World Travel Adapter Kit

Using Apple power adapters, cables, and duckheads with Apple products

françois20 wrote:

Thank you ! So the extension is compatible with MagSafe 3 even though it doesn't say it?

Yes— I do not know how else to say it.

It does say as posted above directly from the HT linked above in so many words— the 140W USB-C is the magsafe 3. This is not the end you are asking about. The extension cord is power to the brick—this is the Universal part

The magsafe 3 is power from the brick to the computer.

The 1.8-meter Power Adapter Extension Cable is an AC extension lead that provides extra length for your Apple power adapter. Use it with MagSafe and MagSafe 2 power adapters, 10W and 12W USB-A power adapters and 29W, 30W, 61W, 67W, 87W, 96W, and 140W USB-C power adapters.

https://www.apple.com/shop/product/MLYU3AM/A/140w-usb-c-power-adapter

NO, and No.

the amount of power required to run for the new computer is higher, AND

the MagSafe-3 is a different connector that previous MagSafe and MagSafe-2.

The US$19 accessory AC extension cord will fit both old and new power adapters.