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Computer: iMac (27-inch Late 2013).
OS: macOS: 10.15.7

I need to connect 3 devices (magic keyboard, mouse and trackpad) to the internal Bluetooth module and 1 device (wireless headphones) to an external USB Bluetooth adapter. I'm experiencing problems with an audio interruption on headphones when all 4 devices (magic keyboard, mouse, trackpad and wireless headphones) are connected to the internal Bluetooth module at the same time. The audio works fine when the only devices connected are keyboard and headphones.

Bluetooth Explorer allows me to select and make either of them active but I don't know how to make both active simultaneously.

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This thread - Possible to use two HCI controllers concurrently? - suggests it is possible.

If my approach is not practical or possible, other ideas / solution are welcome too. Thanks.

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  • WHere are you stuck? The Linked question would appear to cover the method.
    – Tetsujin
    Commented Jan 8, 2021 at 19:38
  • @Tetsujin I understand, but what's the setup/process behind that? How/where do I set it up?
    – user5589349
    Commented Jan 8, 2021 at 20:55
  • @sfxedit Hi. Thanks for your comment. I have edited my whole question. See above.
    – user5589349
    Commented Jan 9, 2021 at 16:30
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    Ok, great. According to Apple: The official Bluetooth specifications say seven is the maximum number of Bluetooth devices that can be connected to your Mac at once. However, three to four devices is a practical limit, depending on the types of devices used. Some devices require more Bluetooth data, so they're more demanding than other devices. Data-intensive devices might reduce the total number of devices that can be active at the same time. So you are on the right path that it would be better to use another external Bluetooth adapter.
    – sfxedit
    Commented Jan 9, 2021 at 18:19
  • Well, I guess my only option here is to contact Apple directly. I'll do that this week and post an update when I have any.
    – user5589349
    Commented Jan 26, 2021 at 21:00

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