Are they legit 8bitdos and not knockoffs? They may be selling the discontinued model like this one. They’ve been superceded by the rounded edge pro - not for any malfunctions but i think nintendo were threatening lawsuits or something unless they changed the aesthetic.
Looking at the 2.4 i realised it’s actually the classic port adapter, so yeah, sorry that one is nes-like machines only. Unless you have a retro adapter like a retrofreak or a very forgiving unifying pickup.