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Black 360 mm liquid cooler with three 120 mm RGB fans and a rotating infinity mirror pump head

NZXT

NZXT Kraken X73 RGB 360mm RL-KRX73-R1 liquid cooler

SKU CH-9EWM-3547Z MPN RL-KRX73-R1

All-in-one liquid CPU cooler with a 360 mm aluminium radiator, three 120 mm fluid-dynamic-bearing fans and a rotating infinity-mirror pump head compatible with Intel LGA 1700 and AMD AM4 sockets

  • Radiator size121 × 394 × 27 mm
  • Fan size3 Fan Slots (120 mm)
  • Compatible socketsIntel Socket LGA 1200, 1151, 1150, 1155, 1156, 1366, 1700, 2
  • Block dimensionsDiameter: 80 mm; H: 55 mm
  • Cooling block materialBlock: copper; Housing: plastic
  • Pump dimensionsCap: Material: Plastic and brass Rotation Orientation: 360°

Fan Size 3 Fan Slots (120mm)

Color Black

Model Kraken X73 RGB

  • Rotating infinity mirror cap adjusts logo orientation in 30° steps
  • Aer RGB V2 fans deliver 17.48–52.44 CFM airflow at 22–33 dBA
  • CAM V4 software enables precise pump and RGB control
  • Nylon-mesh sleeved tubing protects 400 mm rubber lines from damage
  • Copper cold plate covers Intel LGA 1700 and AMD AM4 sockets

360 mm liquid cooler for high-output CPUs

The NZXT Kraken X73 RGB 360mm RL-KRX73-R1 is an all-in-one liquid cooler built around a 394 mm aluminium radiator with three 120 mm Aer RGB V2 fans. It targets enthusiasts and workstation users who need sustained thermal headroom for overclocked Intel Core i9, i7, i5 or AMD Ryzen processors across LGA 1700, 1200, 115x, 2011, 2066 and AM4 platforms.

Sustained load behaviour with fluid-dynamic fans

Under continuous load the fluid dynamic bearing fans operate between 500 and 1,500 RPM, moving 17.48 to 52.44 CFM while staying within a 22 to 33 dBA acoustic range. The 27 mm thick radiator and 400 mm reinforced tubing provide a large surface area for heat dissipation, allowing the pump to maintain stable coolant temperatures during long rendering or compile sessions without thermal throttling.

Rotating infinity mirror cap and CAM integration

The copper cold plate sits beneath a 55 mm high plastic housing topped with an 80 mm diameter infinity mirror ring that rotates in 30° increments so the logo stays upright in any orientation. Fine nylon mesh sleeves protect the rubber tubes during installation, while a 5 V RGB header supports up to four LED strips. CAM software gives per-fan curve control and lighting synchronisation without additional controllers.

How it compares

Measured against everything we stock in Liquid Cooling & AIO Coolers, at today’s prices. Recalculated every night.

Price $173.99
Pricier than about 86% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Brand nameNZXT
Product lineKraken X73 RGB
Model nameRL-KRX73-R1
Product typeLiquid Cooling System
Product colorBlack
Performance
Fan speed500–1,500 + 300 RPM
Fan airflow17.48–52.44 CFM
Ports & slots
Fan plug type4-pin PWM
Size & build
Radiator size121 × 394 × 27 mm
Fan size3 Fan Slots (120 mm)
Block dimensionsDiameter: 80 mm; H: 55 mm
Cooling block materialBlock: copper; Housing: plastic
Radiator materialAluminum
Fan dimensions120 × 120 × 26 mm
Bearing designFluid Dynamic Bearing
Tube sizeLength: 400 mm
Tubing materialUltra-low evaporation rubber with nylon braided sleeve
Shipping weight2.27 kg
Package size475 × 183 × 147 mm
Compatibility
Compatible socketsIntel Socket LGA 1200, 1151, 1150, 1155, 1156, 1366, 1700, 2011, 2011-3, 2066
Intel Core i9 / Core i7 / Core i5 / Core i3 / Pentium / Celeron
AMD Socket AM4, sTRX4*, TR4* (*Threadripper bracket not included)
AMD Ryzen 9 / Ryzen 7 / Ryzen 5 / Ryzen 3 / Threadripper
Environment & compliance
Fan noise level22–33 dBA
More details
LED lightingRGB

Other versions of this model

5 more in the same range

Questions about this item

How loud are the three AER RGB V2 fans when the 360 mm radiator runs continuously?

The 120 mm fluid-dynamic-bearing fans operate between 22 and 33 dBA across their 500 to 1,500 RPM range, so noise stays low even under sustained load.

Which CPU socket bracket must I already have to mount the pump block on an Intel LGA 1700 platform?

The cooler includes brackets for LGA 1200, 1151, 1150, 1155, 1156, 1366, 2011, 2011-3 and 2066; the LGA 1700 bracket is not in the box and must be obtained separately from the manufacturer.

Will the 400 mm tubing reach the radiator if I keep my existing full-tower case with a top-mounted 360 mm radiator location?

The 400 mm tube length is designed for standard 360 mm radiator placements; measure your specific case routing to confirm the run from the CPU socket to the top mounting points does not exceed that distance.

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