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 cable will not work with a stock SNES mini (SNS-101), SFC mini (SHVC-101), N64, or North American Gamecube!
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
Length: 6ft (1.8m) nominal
Impedance: 75Ω nominal
Shielding: Aluminum Mylar w/ Braid
Video Interface Capability: CEA-770.2-D (one 75Ω load per channel)