Cooler Master Seidon 120M Liquid CPU Cooler Review

The entire Cooler Master Seidon 120M package includes the pump and radiator unit, a single 120mm PWM fan, an instruction manual and a bag full of mounting hardware which includes a tube of thermal paste.

The pump uses a very unique design. It gives off that traditional  robust gamer style I have come to expect from Cooler Master products. There is a blue LED present in the pump but it doesn’t really line up to any particular feature on the pump, it seems randomly placed to me being just above the grey circle at the top. Having flow direction labelled on the tubing would suggest Cooler Master perhaps had ideas about making these coolers changeable and refillable, but warranty void if removed stickers would suggest otherwise, or that they changed their mind.

At the bottom we can see a nice all copper base and what looks like solid construction. Cooler Master aren’t messing around with any pre-applied thermal paste nonsense, a tube is provided that will give you at least 3-4 reapplications.

The radiator is dense, solidly made and comes in mint condition. You can’t really ask for much more than this for an entry level 120mm AIO cooler.

The provided fan does 600-2400 RPM allowing for a balance of total silence and total performance. Cooler Master have also been generous enough to include 8 fan mounting screws should you want to do push-pull in your system. The fan doesn’t look like revolutionary quality (get the pun!?) but I certainly believe it will do a solid job having PWM controls and a very flexible PWM range.