M4 iMac connectivity for backup disk and router

I have just upgraded to an Apple M4 iMac from a 2017 iMac. It has smaller ports and no port to connect directly to my router.


To connect with my existing back up disk, I need an adapter but which one? I have seen simple ones advertised connecting USB-c to USB but which ones are the best?


Is there a way to connect my new iMac to my router or should I simply use wifi?

iMac 24″, macOS 15.7

Posted on Mar 9, 2026 1:42 PM

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Question marked as Top-ranking reply

Posted on Mar 9, 2026 1:58 PM

You can use the Apple or most any USB-C to USB adapter for your external backup drive.

for some examples: USB-C to USB Adapter - Apple

https://www.amazon.com/dp/B07PDLQ555/ref=sspa_dk_detail_0?

https://www.amazon.com/dp/B08Z768LCW/ref=sspa_dk_detail_1?


There is a custom order an M4 iMac, that offers an Ethernet Port built into the charging adapter.


If you did not include that while ordering the iMac, Apple sells a Belkin USB-C to Ethernet adapter.

see > https://www.apple.com/ca/shop/product/hrg32zm/a/belkin-usb-c-to-25gb-ethernet-adapter

6 replies
Question marked as Top-ranking reply

Mar 9, 2026 1:58 PM in response to RBSB60

You can use the Apple or most any USB-C to USB adapter for your external backup drive.

for some examples: USB-C to USB Adapter - Apple

https://www.amazon.com/dp/B07PDLQ555/ref=sspa_dk_detail_0?

https://www.amazon.com/dp/B08Z768LCW/ref=sspa_dk_detail_1?


There is a custom order an M4 iMac, that offers an Ethernet Port built into the charging adapter.


If you did not include that while ordering the iMac, Apple sells a Belkin USB-C to Ethernet adapter.

see > https://www.apple.com/ca/shop/product/hrg32zm/a/belkin-usb-c-to-25gb-ethernet-adapter

Mar 9, 2026 3:23 PM in response to RBSB60

There are many ways to go between USB-C and USB-A.


These include

  • The Apple USB-C to USB adapter
  • Small inline "plug" adapters
  • USB-A hubs with four or more USB-A ports, which either plug into a USB-C port directly, or can be plugged into one with the aid of an adapter.
  • USB-C and Thunderbolt hubs and docks that provide an assortment of ports, including USB-A ones.
  • Cables with USB-C on one end, and USB-A on the other, that can substitute for USB-A to USB-A cables.]]


Which to use is largely a matter of preference (and of what other things you need to plug into your Mac), but

  • If the idea is to plug in drives, make sure that the cable, adapter, etc. supports USB 3 data rates.
  • If you are using a hub or dock, you'll want one with its own power supply. Even in the pre-USB-C days, if you plugged several devices into a bus-powered hub, their power demands might exceed the amount of power a computer's USB 2.0 or 3.0 host port had to offer.


You can also get cables that go from USB-C to other USB connectors. E.g. if a bus-powered drive has a USB 3.0 Micro B connector, and was bundled with a USB 3.0 Micro B to USB-A cable, you could use a USB 3.0 Micro B to USB-C cable to "cut out the middleman" and eliminate the need for a separate USB-C to USB adapter.

Mar 10, 2026 1:52 AM in response to RBSB60

Thank you for your reply - and indeed all the replies. Before purchasing, I was unaware of the changes from my old iMac to the new one, the difference in the ports and the fact that my imported apps no longer run without Rosetta. I will review all the options. I thought I needed a Docking Station but, on reflection, I think I should take a simpler option. I am not a sophisticated user doing complicated tasks.

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M4 iMac connectivity for backup disk and router

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