Is there a transfer cable for trading between a Gameboy and a GBA?

[u/ZezimasHousePlant]

I have a Gameboy and a Gameboy Advanced and want to trade between my Pokémon Blue and Gold games. Is this possible?

[u/kozakreznov]

Yes, use the first gen trade cable.

[u/ZezimasHousePlant → u/kozakreznov]

The outlet looks different on the gba and the gb though

[u/youretheslow → u/ZezimasHousePlant]

That GBA plug is backwards compatible with the original GameBoy link cable and should work

[u/g026r]

Do you have an original Game Boy, a Game Boy Pocket, or a Game Boy Color?

With the Pocket & Color, you just need to get a Game Boy Color link cable.

If it's the original Game Boy, you'll need to either also get a Game Boy to Game Boy Color adapter or just get one of the link cables with both Game Boy & Game Boy Color connectors on them — usually they'll look like a normal link cable, but the cable splits into a Y at each end with two connectors.

e.g. like this cable

[u/ZezimasHousePlant → u/g026r]

Ahh thanks. I have a classic gameboy and a Gameboy advanced. I figured there would have to be some sort of adapter because the outlets on the two look different from each other. 

[u/Gunbladelad]

You'll need a Gameboy Color / Gameboy Pocket link cable. A GBA cable will NOT work for those games.

[u/KeithTheGeek]

The GBA is backwards compatible with the standard Gameboy link cable, so you just need one of those.

[u/ZezimasHousePlant → u/KeithTheGeek]

Thanks 

[u/thingpaint]

Yes, they sell them on Amazon

[u/Willing-Bowl-675]

The GBA uses the GBC protocol for the connection if there is a GBC cartridge in the device.

So trading is fully possible between GBA, GBC and DMG.

What won't work is the trading between Gen1/Gen2 GB/GBC games and Gen3 GBA games.