Which fans are they exactly? Manufacturer's number is wrong > https://www.arctic.de/search?search=ACFAN00135A gives several results. Searching for "arctic p12 pwm" also produces strange results > dear galaxus, please clean up or explain what these different prices with exactly the same name are about. https://www.galaxus.ch/search?q=arctic%20p12%20pwm&so=4 And if you're going to let customers search, give them the correct manufacturer's numbers.