HD Retrovision's specific list of known supported consoles can be found here.
Though it may work with others we haven't tested, we cannot guarantee it.
NOTE: This product requires an HD Retrovision Genesis YPbPr Cable. It will not work with a SNES YPbPr cable. Do not use this adapter with a Genesis console or other console with a 262° style 8-pin DIN connector.
Your television or display must be able to support "240p" video over YPbPr to use this product.
You can easily test for this by following these steps