I doubt the differences are large. I have both a Unicomp Model M and a real Model M; they are best keyboards I have ever owned, and the Unicomp version is as r

I doubt the differences are large. I have both a Unicomp Model M and a real Model M; they are best keyboards I have ever owned, and the Unicomp version is as rugged as the original. The weight is about the same, the plastic is slightly different (in texture - quality is the same otherwise), and I have the black and grey version (I wish they made black keycaps for it). If you want a Model M, and you can't find a real one (or you mobo doesn't have a PS2 connector, or the ones you can find are too expensive), then going for the Unicomp version is well worth it, imho.