NZXT Kraken X40 All-In-One Liquid CPU Cooler Review

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Closer look

Like the Kraken X60 we review just a couple of days ago the X40 is another AIO cooler that supports a fan larger than the norm. In this case we have support for up to two 140mm fans in a push-pull configuration, but it does only come with one. But we will still take it.

The radiator attached to this unit is a single 140mm one that measures 27mm thin. And just like the larger model the X40's radiator is not dense at all allowing for slower speed fans to work well.

And just like the x60 the tubing on this model is very flexible and measures 400mm long. NZXT wanted the cabling to be longer than most making for the installation process much smoother.

The block of the cooler is identical to that of the X60 as it has the same circular configuration. All of the AIO systems we have seen thus far has shared the same setting except for the Corsair H100i and H60 as well as the Cooler Master Seidon 120M. The latter is round as well but the mounting is different.

Speaking of mounting the system secures to the motherboard sockets using several points around the pump along with a couple of brackets.

Thermal compound is applied to the base out-of-the-box. With it removed we saw evidence of machining but nothing to write home about.

All cabling is attached to the head of the unit making for a simpler install. We once again appreciate NZXT giving them a good sleeving job. As seen in the image below two fans can be connected if user wants to implement a push/pull setup. The USB header allows the cooler to interact with the software provided. More about the software can be seen here.

Below are the mounting hardware needed to mount the cooler to any AMD or Intel motherboard.