Good GameCube Adapters? (For PC)

[Pignickel]

I know there was a thread about adapters not working with dolphin,
But I’d like to know which adapters are good for use with dolphin.

I’m aware the official Wii U one is probably best, but for some reason
They’re pretty expensive, especially when compared to third party
adapters. Any suggestions? Anyone have a cheap one that actually works?
Model numbers/ names would be helpful, preferably from amazon but not a
Must.

Thanks in advance.