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Black 280mm AIO with square CPU block, RGB ring, two 140mm fans, sleeved tubes

NZXT

NZXT Kraken X63 RGB RL-KRX63-R1 280mm liquid cooler

SKU CH-J96X-BA074 MPN RL-KRX63-R1

A 280 mm all-in-one liquid cooler with a 315.00 x 143.00 x 30.00 mm aluminium radiator, two 140 mm fluid-dynamic-bearing fans running 500 to 1,500 RPM.

  • Radiator size315 × 143 × 30 mm
  • Fan size2 Fan Slots (140 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
  • Radiator materialAluminum

Fan Size 2 Fan Slots (140mm)

Color Black

Model Kraken X63 RGB

  • Larger infinity mirror ring boosts RGB presence with 10 percent more LEDs
  • Aer RGB 2 fans deliver 30.39 to 91.19 CFM airflow at 22 to 33 dBA noise
  • Fluid dynamic bearings on both 140 mm fans extend lifespan and keep operation near-silent
  • Nylon mesh sleeves protect 400 mm rubber tubing from wear and mishandling
  • CAM software gives precise fan curves, pump control and full RGB sync across NZXT devices

280 mm all-in-one liquid cooler

The NZXT Kraken X63 RGB is a closed-loop water cooler built around a 280 mm aluminium radiator and two 140 mm Aer RGB 2 fans. It targets builders who want strong CPU thermal performance combined with addressable RGB lighting controllable through NZXT CAM software.

Upgrade from stock or 120 mm coolers

The larger radiator surface and higher airflow range of 30.39 to 91.19 CFM give noticeably lower temperatures on modern high-core-count CPUs. The jump is worth it when your current cooler hits thermal limits during sustained loads or when you want quieter operation at the same heat output.

Check socket brackets and case clearance

Verify that your motherboard uses one of the listed Intel LGA sockets or AMD AM4, sTRX4 or TR4; the Threadripper bracket is not included. Ensure the case can fit a 315 mm long radiator with 30 mm thickness and provides 400 mm of tubing length between the block and radiator mounting points.

How it compares

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

Price $138.99
Pricier than about 79% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Brand nameNZXT
Product lineKraken X63 RGB
Model nameRL-KRX63-R1
Part numberRL-KRX 63-R1
Product typeLiquid Cooling System
Product colorBlack
Performance
Fan speed500–1,500 + 300 RPM
Fan airflow30.39–91.19 CFM
Ports & slots
Fan plug type4 Pin
Size & build
Radiator size315 × 143 × 30 mm
Fan size2 Fan Slots (140 mm)
Block dimensionsDiameter: 80 mm; H: 55 mm
Cooling block materialBlock: copper; Housing: plastic
Radiator materialAluminum
Fan dimensions140 × 140 × 26 mm
Bearing designFluid dynamic bearing
Tube sizeLength: 400 mm
Tubing materialUltra-low evaporation rubber with nylon braided sleeve
Shipping weight2.09 kg
Package size351 × 211 × 160 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

What radiator clearance does the 280mm Kraken X63 RGB need in the case?

The radiator measures 315.00 x 143.00 x 30.00 mm and mounts two 140 mm fans, so the case must fit a 280 mm radiator plus fan thickness.

Which mounting step is often missed when installing the Kraken X63 RGB on Intel LGA 1700?

The cooler includes brackets for older Intel sockets, but the LGA 1700 bracket is not in the box; you must request it from the manufacturer before installation.

How often should the Aer RGB 2 fans on the Kraken X63 RGB be cleaned to keep noise low?

Dust the 140 mm fluid-dynamic-bearing fans every few months; they run at 500 to 1,500 RPM and stay quiet at 22 to 33 dBA when clean.

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