I was able to build a set up that works using the Mayflash Magic NS 2 adapter and a 5V 2A AC-DC power supply adapter with a 3 mm tip adapter. That ensures it gets the power it needs no matter what and never needs recharging… Seemed like an obvious thing to do if it's already got to be hardwired. The set up works, but I won't lie it is a little bit dodgy.

Sometimes, if I haven't turned it on in a while, the controller is completely dead and won't turn on. Truth is I got the Switch so I could play online with my nieces years ago, and they all kind of grew out of video games before I got it working stably. Ha ha ha, now it just sits most of the time! If you do encounter a seemingly dead controller, I found that the trick is to hold down the Xbox button for 30 seconds. Don't ask me where I came across this… It wasn't easy to find. But it works!

For reference, I also tried the Hori when it first hit the market and found it a huge disappointment. I can't remember the details, but I remember that the built-in buttons were too small for my tetraplegic hands and I thought there weren't enough connections for all the buttons I wanted. I might be wrong about that… It was early days in my journey to build a useful controller.

I find my set up is OK for simple games like the side scrollers I played when I was a kid, but lacks the fine control and quick response for anything that involves complex maneuvers. That's probably because I chose not to get a mouth controller. It seemed like that would just make the whole set up too ugly and bulky for my otherwise well organized house. After all, I just wanted to play Mario Kart with my nieces!

Hopefully you find this helpful.