On my Solano, the 230mm fans aren't. They're somewhere around 200mm, by any reasonable measurement, but they're decent fans, relatively quiet, and they move some air according to their numbers, not sure if they're fluffed like the fan size or not, also, it was supposed to have 140mm fans up front, but 140mm fans from any other company don't fit, 120mm fans fit... Still a good case, would buy again, but as said, heavy, this isn't for LAN parties, but it fits all my stuff in there, including a sleeping bag and a tent.