bc i bought 3 140mm fans and had them sleeved and ended up returning the case for one that doesnt have 140mm holes. so its either pay 50 to have the new cases panel modded and wait 1 week or buy 3 of these for under 15 bucks
Yes it'll be fine. A few years ago I wanted to do similar and only had 8cm fan holes. I used 3x 8cm>12cm adapters very much like the ones the OP pointed out. Helped me cool my case better when I didn't have much cash.
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