Super cheap Duo (and PCE, I suppose) extension cables

[T2KFreeker]

Hmm, any of these for the Turbografx?

This is probably as good as it gets: http://www.bestpricecables.com/nec-turbo-grfx-extension-cable.html

I have never used one of these, but they look like the same pin-out size as T-16 controllers. Official NEC ones are a bit pricey online.

This is actually not bad when you consider the alternative. I'd pay that compared to what the others are going for! Windy got me hooked when he sent me an official extension cable! A MUST have for sure.