PC Components

NZXT Kraken X73 – Can water cooling get even better with the Infinity Mirror?

NZXT is not an unknown name in the CPU water cooling market. Together with e.g. Corsair, Alphacool and ASUS they represent the high-end sector. The X-Series is now in its third generation. The well-known and popular Infinity Mirror has remained and also otherwise optically little has changed – that’s a good thing. Nevertheless, NZXT promises improvements over its predecessor with this product, including a better pump and an even bigger Infinity-Mirror, which can now also be rotated to allow mounting in any orientation. Below we have tested the water cooling for you.


Socket compatibility Intel: LGA 1200, 1151, 1150, 1155, 1156, 1366, 2011, 2011-3, 2066
AMD: Socket AM4, sTRX4, TR4 (without Threadripper Bracket)
Water block 80 x 80 x 55 mm (L x W x H)
Copper block with plastic housing
Pump 7th generation of the Asetek pump series
800 – 2,800 RPM
Hoses 400 mm, nylon coated
Radiator 394 x 121 x 27 mm (L x W x H)
Fan Aer P120, 3x
120 x 120 x 26 mm (L x W x H)
500-2,000 RPM
21-36 dBA
Oil pressure bearing
4-pin PWM
Warranty 6 years
Price € 164.85*

Scope of delivery and workmanship

After opening the package, the eye falls directly on the water cooling system. In addition to this, the box also contains assembly material, three individually packed fans, installation instructions and connection cables for the pump.

The price is noticeable during processing. The radiator is perfectly painted throughout, the fans are torsionally stiff and you immediately get the feeling of having received a high-quality product. The pump head with the notorious Infinity Mirror is mirrored and protected from scratches by a protective film. No bent cooling fins or other quality defects can be found.

The tubes are very robust and cannot be bent easily. This is intended to provide increased safety – they bend in almost no scenario and thus rule out leakage. Despite the Infinity Mirror, the fans are kept simple. You’ll look in vain for RGB lighting here – but you’ve concentrated entirely on the performance.

The hoses are connected to the water block via rotatable fittings. Combined with the rotating pump head, the cooler can be fixed in any position, giving complete freedom.

But there is one small downer – the water block is only connected to the mainboard via USB and pump header and to the power supply via SATA power connector. There is no fan control directly via the software and a PWM splitter is also not available. If you don’t have a splitter, you should buy one. Alternatively one can connect two of the fans as case fans. Why a cheap component is omitted here – especially for a premium product – is incomprehensible. Also, a fan profile based on the water temperature is thus not possible without another NZXT controller. A pity!

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NZXT Kraken X73 AIO RGB-CPU-Flüssigkeitskühler price comparison

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Simon Lüthje

I am co-founder of this blog and am very interested in everything that has to do with technology, but I also like to play games. I was born in Hamburg, but now I live in Bad Segeberg.

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