Cooler Master Seidon 120M Liquid CPU Cooler Review

As of writing, Cooler Master’s Seidon 120M CPU cooler is still a very new product. Pre-order pricing for it is available and it shows the price to be around £45.99. At that price we are looking at something that is about 10% cheaper than Corsair’s H55 yet offers an almost identical level of performance and much better acoustics. Cooler Master have produced a product that is a class-leader at the entry level end of the all in one liquid CPU cooler market. My test results and impressions show that the Cooler Master Seidon 120M is a very good product. However, there are still a few negatives to cover first before we elaborate on the positives.

My first minor disappointment about the Seidon 120M comes in the form of its tubing. Cooler Master have opted for the ribbed plastic tubing which is much less flexible than its rubber counter-part. Despite immense amounts of feedback from the reviewing and consumer communities over the last few years, company’s still continue to churn out this inferior plastic tubing when nearly everyone prefers the rubber type. Unfortunately Cooler Master are one of those, and I hope they rectify this in the future. The only reason I can think of,  that justifies why they do this, is that it allows them to bring this product to the market at a lower cost, but realistically speaking I can’t imagine the increase in cost of upgrading to rubber tubing would be that high. I have a second concern which is more of a knit-pick than anything, but I will state it anyway. The pump unit, which Cooler Master have given a very nice robust design that looks pleasantly different to all those other Asetek rebrands out there, has aesthetically bad LED placement. Now I understand having an LED on the pump, because that is “all the rage” these days to make it look more funky and interesting, but why isn’t the Blue LED placed underneath the Cooler Master logo to illuminate that? Instead it is randomly placed where it looks odd and as-it-stands, I would rather have no LED at all than have it the way it is.

Negatives aside I still believe the Cooler Master Seidon 120M is probably the best entrance into the all-in-one Liquid CPU cooler market anyone could make. Coming in at £45.99 it is definitely one of the cheaper, if not the cheapest, option yet it still offers a highly competent level of performance. The inclusion of a wide range PWM fan allows it to offer an excellent compromise between silence and performance, depending on what your preference is. The build quality is excellent and the mounting kit, as I have come to expect from Cooler Master, is simple and effective. As a result of those things, I have no hesitation at all in awarding the Cooler Master Seidon 120M our Editor’s Choice award. Congratulations to Cooler Master and we look forward to seeing more great things from their future water cooling products.