This article covers NZXT KRAKEN X73 簡易水冷CPUクーラー RGBファン搭載 360mm RL-KRX73-R1 FN1526.

Overview

The NZXT KRAKEN X73 is a 360mm all-in-one liquid CPU cooler that has earned a strong reputation among PC enthusiasts. It features a third-generation Asetek pump and three 120mm RGB fans, delivering excellent thermal performance for high-end processors. The cooler supports both Intel LGA1700/1200/115x and AMD AM5/AM4 sockets, making it a versatile choice for modern builds. With a TDP rating of around 300W, the KRAKEN X73 can handle flagship CPUs like the Core i9-13900K or Ryzen 9 7950X under sustained loads. The included fans spin up to 1500 RPM and produce a maximum noise level of 33 dBA, striking a good balance between cooling and quiet operation. The pump uses a ceramic bearing for long-term reliability, and the 6-year warranty provides peace of mind. However, the 360mm radiator requires a case with sufficient mounting space, so compatibility checking is essential before purchase. The pump head also has a height of about 55mm, which may interfere with some side panels.

Compatibility Guide

Supported sockets: Intel LGA1700/1200/115x, AMD AM5/AM4 Radiator dimensions: 394mm x 120mm x 27mm Fan size: 120mm x 3 (included) Case requirement: Must support a 360mm radiator (top or front mount) Memory clearance: Rotating fittings on the pump head minimize RAM interference, but very tall modules should be checked Power connectors: 3-pin fan headers x3, 3-pin pump header x1, USB 2.0 header for RGB control

Product Info

The NZXT KRAKEN X73 (model RL-KRX73-R1) launched in 2020 and is widely available through major retailers like . It sits in the high-end segment of the AIO cooler market, competing with the Corsair H150i and Cooler Master MasterLiquid ML360 series. The official warranty is 6 years for Japanese authorized units. Noise output is rated at a maximum of 33 dBA, and the pump operates quietly even at full speed. The ceramic bearing design contributes to long service life. The cooler includes a pre-applied thermal paste, so no additional purchase is needed for installation.

Best Use Cases

High-end gaming PCs: For CPUs like the Core i9-13900K or Ryzen 9 7950X, a 360mm AIO is almost mandatory to keep temperatures under control during extended gaming sessions. The KRAKEN X73 delivers consistent performance without excessive noise. Content creation workstations: Video editors and 3D renderers who run CPU-intensive tasks for hours will benefit from the sustained cooling capacity. Pairing with a well-ventilated case allows low fan speeds and quiet operation. * RGB-focused builds: The CAM software enables granular control over each fan's LED lighting, allowing synchronization with other NZXT components for a cohesive aesthetic.

Things to Consider

The 360mm radiator is large and may not fit in smaller cases. Always verify your case's radiator mounting dimensions before purchasing. The pump head height of approximately 55mm could also conflict with some side panels, especially in compact mid-tower cases. Compared to some competitors, the fans have a relatively modest maximum speed of 1500 RPM. While this keeps noise low, users seeking absolute maximum cooling performance might prefer higher-RPM alternatives. The included retention kit supports LGA1700, but older sockets (LGA115x) may require a separate backplate. Finally, the cooler relies on USB 2.0 for RGB control, so ensure your motherboard has an available internal USB 2.0 header. If you don't need RGB, the non-RGB version (KRAKEN X53 or X63) might be a more cost-effective choice.