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Yes there will be a Gen3 single 5015 part cooling duct. Slightly delayed, but in progress, and I will post as soon as it is done. No, I don't do part cooling ducts for radial fans, not that it couldn't be done, but because they don't 'fit' in the compact design concept of the Hero Me cooling system. Quality sealed bearing 5015 radial fans are available. I buy mine from TH3DStudio.com here: https://www.th3dstudio.com/product/5015-high-speed-sealed-bearing-fan/ They have both 12v and 24v versions.