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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.

  • TypeLiquid Cooling System
  • Block CompatibilityIntel Socket LGA 1200, 1151, 1150, 1155, 1156, 1366, 1700, 2
  • Block Dim.Diameter: 80mm; H: 55mm
  • Block MaterialBlock: copper; Housing: plastic
  • Radiator Size315.00 x 143.00 x 30.00 mm
  • Radiator MaterialAluminum

Fan Size 2 Fan Slots (140mm)

Color Black

Model Kraken X63 RGB

Struck-through versions exist but are not stocked here.

  • 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.

Highlights

  • 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

Specifications

BrandNZXT
SeriesKraken X63 RGB
ModelRL-KRX63-R1
Part NumberRL-KRX 63-R1
TypeLiquid Cooling System
Block CompatibilityIntel 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
Block Dim.Diameter: 80mm; H: 55mm
Block MaterialBlock: copper; Housing: plastic
Radiator Size315.00 x 143.00 x 30.00 mm
Radiator MaterialAluminum
Fan Size2 Fan Slots (140 mm)
Fan Dim.140 x 140 x 26mm
Bearing TypeFluid dynamic bearing
Fan RPM500 - 1,500 + 300 RPM
Fan Air Flow30.39 - 91.19 CFM
Fan Noise22 - 33 dBA
Fan Connector4 Pin
ColorBlack
LED ColorRGB
Tube Dim.Length: 400mm
Tube MaterialUltra-low evaporation rubber with nylon braided sleeve
FeaturesThe Kraken X63 RGB is a stunning must-have for any build with the addition of NZXT RGB fans. With a re-designed cap and larger infinity mirror ring LED, the Kraken X63 RGB delivers an amazing experience in luminous liquid cooling, backed by a 6-year warranty.
Install your pump in any orientation and rotate the NZXT logo to match
Includes an NZXT RGB connector for compatibility with our Aer RGB 2 fans or NZXT RGB accessories
All-new 7th Gen Asetek pump providing better cooling and 800RPM whisper-quiet performance
Improved synchronization of lighting modes across other NZXT RGB accesso
Shipping weight2.09 kg
Package size351 × 211 × 160 mm

Other versions of this model

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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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