Joined in 2023 
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Corsair’s new ML120 and ML140 fans deliver quieter operation and better performance than most fans on the market. The new magnetic levitation technology seems to be working wonders, and it’s well supported by noise-damping corners and fun LEDs in the Pro and Pro LED models. Replacing every fan in your case might be an expensive venture, but these premium fans are worth it. Corsair ML fans do not change the world, however they are an interesting move. The new magnetic levitation bearings are an irrelevance to us, although they make a neat hook for marketing purposes. Once plugged in, it’s time to actually install the fans. Despite moving from 120mm to 140mm, the fans still fit easily next to our existing components. We placed the bottom fan first, screwed it in, then the next one flush on top of it and screwed that in too. Magnetic bearing harnesses magnetic levitation technology to provide lower noise, higher performance and a longer lifespan
Corsair has employed some nifty technology in its new range of ML fans however we have to be careful with the name. The bearings that support the rotors on the motors use Magnetic Levitation but this is not shortened to Maglev (like the famous trains) as that is a trademarked term so we either have to say Magnetic Levitation or take the easy route and call them ML. Compared with our previous fans, we saw an decrease in temperature of about 3-4 degrees across the board at idle, and 1-2 degrees under load. Of course, temperatures are only one half of the story — let’s take a look at noise levels. Noise Next, we investigated the power situation. The fan controller card only sports 3 pin connectors and our motherboard fan connectors are occupied, so we’ll use four pin connectors connected directly to the power supply instead.Before installation, sound levels were 47dB at idle and 50dB under load. After installation, sound was measured at 45dB at idle, and 50dB under load; a small net improvement.
Corsair is excited about ML as it allows the fans to spin much faster than normal. Where we typically expect a 120mm/140mm fan to max out at 1,400rpm-1,600rpm, in the case of ML120 the range is 400rpm-2,400rpm and for ML140 the figures are 400rpm-2,000rpm.Out of the box, the ML140 Pro LED Blue (hereafter: the ML140) immediately looks a bit fancier and more rugged than the average case fan. Quiet mode costs you less than 5 degrees, regardless of the cooler or fans, so the extra noise of Performance mode makes it pointless. With the larger Kraken X61 cooler the NZXT FX140 fans operate at 900rpm and 1,600rpm while the ML140s run at 600rpm and 1,400rpm.
With the fans installed, it was time to turn on the PC and see what differences in noise and performance we could find!Custom rotor design for the perfect balance between high static pressure and high airflow, operating flawlessly in the most challenging environments By contrast in Performance mode the coolers were intolerably noisy, even with the glass side panel installed on the be quiet! Dark Base 900 case and it has to be made clear the be quiet! case lives up to its name and is very quiet. This highlights the point we make in the video which is that it is all well and good to improve the technology used in the bearings in a fan but when you crank up the speed and start shifting air it is going to get noisy. The subtle blue outline around the periphery of the centre and the coloured corners match the LEDs built into the centre. To reiterate, we’ve gone for the Blue option but White and Red (and no LED at all) are also options for the Pro. Corsair SP120L are not very effective, ML120 and ML140 work well and NZXT FX140 v2 are surprisingly good. options: PROFIBUS DP, CANopen®, DeviceNet™, PROFINET, EtherCAT®, Modbus RTU, ASCII or TCP/IP, EtherNet/IP, POWERLINK, FLOW-BUS
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