I don’t think it is an older RS3M, as I have (I think) every cube in that series, and it doesn’t match the MF3, MF3S, MF3RS, MF3RS2, RS3, RS3M, and RS3M 2020. I suppose there is always a chance that one of those could be wrong too, but I think they matched the pictures on the boxes.
Unfortunately I’m not very familiar with all of MoYu’s line. If the logo on the cube is exactly the same then I would guess it’s one of the MF3RS series as their WRM ones usually have different logo. But other than that, I have no idea.
Maybe an older RS3M? How is it different than the RS3M 2021 that you got?
I don’t think it is an older RS3M, as I have (I think) every cube in that series, and it doesn’t match the MF3, MF3S, MF3RS, MF3RS2, RS3, RS3M, and RS3M 2020. I suppose there is always a chance that one of those could be wrong too, but I think they matched the pictures on the boxes.
Any other MoYu 3x3s it could be?
Unfortunately I’m not very familiar with all of MoYu’s line. If the logo on the cube is exactly the same then I would guess it’s one of the MF3RS series as their WRM ones usually have different logo. But other than that, I have no idea.