I have the problem that my headset (KLIM Mantis Gaming Headset - USB | Headset with microphone for PC, PS4, PS5, Nintendo Switch, Mac + 7.1 Surround Sound Noise Canceling Gaming Headphones - PS5 Headset | NEW 2021 https://www.amazon.de/...01MTJ5CDP/ does not work really well my iMac from 2015 works sometimes it works consistently but sometimes not and I sound like a robot, I had the idea that it was due to the USB, but I tried all the USB ports that the Mac tried hard and everything is the same Problem… The funny thing, however, is that it works perfectly on my PS4 with a 5 m USB extension cable…
My questions: what do you think it might be because of the headset or is it the USB ports of the iMac? Although I can't imagine that all four USB inputs and outputs from the iMac are defective…
You can find a possible answer in Apple Support. Here is the link to the correct page.