Will the USB keyboard from my current iMac (late 2015) work with a new M4 iMac?

Will the USB keyboard from my current iMac (late 2015) work with a new M4 iMac? I’m considering updating.


[Re-Titled by Moderator]

Original Title: Old USB keyboard with the new M4 iMac?

iMac 27″, macOS 12.7

Posted on Jul 17, 2025 7:47 AM

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Question marked as Top-ranking reply

Posted on Jul 17, 2025 12:47 PM

Yes, you'll need to use one port on the back of the iMac to connect the keyboard, but you'll need an adapter, as your keyboard has a different connector to the ones on the back of the new iMac since it plugs in to the ports on the old iMac I'm assuming without any adapter.,


Late 2015 iMac:


M4 iMac



The connector shape and size is different, the actual connection method is the same. i.e plug it in a port on the back, but you need to convert the shape an size of the keyboard cable end to the shape of the ports on the new Mac. That's what the adapter is for.


Unless by USB you actually mean Bluetooth (wireless).





8 replies
Question marked as Top-ranking reply

Jul 17, 2025 12:47 PM in response to El Deanio

Yes, you'll need to use one port on the back of the iMac to connect the keyboard, but you'll need an adapter, as your keyboard has a different connector to the ones on the back of the new iMac since it plugs in to the ports on the old iMac I'm assuming without any adapter.,


Late 2015 iMac:


M4 iMac



The connector shape and size is different, the actual connection method is the same. i.e plug it in a port on the back, but you need to convert the shape an size of the keyboard cable end to the shape of the ports on the new Mac. That's what the adapter is for.


Unless by USB you actually mean Bluetooth (wireless).





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Will the USB keyboard from my current iMac (late 2015) work with a new M4 iMac?

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