This is Nintendo's Super Game Boy 2. The back of the unit states: "The Super Game Boy 2 is a Super Famicom peripheral for playing Game Boy cartridges on the Super Famicom." This item was found at my parents' house. I have never used it, so I don't know how to use it. Please consider this a junk item as I have not tested its functionality. No claims and no returns accepted. #Nintendo #Nintendo #SuperGameBoy #SuperGameBoy2 #superGAMEBOY #GameBoy #SuperFamicom #GamePeripherals #Games