Another option that does analog -> analog conversion/upscaling/frame doubling: https://github.com/ramapcsx2/gbs-control https://github.com/ramapcsx2/gbs-control

Another option that does analog -> analog conversion/upscaling/frame doubling: https://github.com/ramapcsx2/gbs-control https://github.com/ramapcsx2/gbs-control Much less expensive than the OSSC or Retrotink products.