This article covers NZXT 水冷クーラー用 GPU 固定ユニット ホワイト 汎用 RL-KRG12-W1 FN1447.

Overview

The NZXT RL-KRG12-W1 (Kraken G12) is a mounting bracket that lets you attach a liquid cooler to your graphics card. It comes in white and supports over 30 different liquid coolers, including NZXT's own Kraken X series (X31, X41, X52, X62, X72) and many Asetek-based designs. By replacing the stock air cooler, you can achieve up to 40% better cooling performance — a meaningful upgrade for demanding games or overclocking.
The design is refined from the earlier Kraken G10, featuring a simpler installation process. An integrated 80mm fan actively cools the VRM and memory area around the GPU, ensuring overall stability even under sustained load. The bracket itself is made of copper for efficient heat transfer, and the included fan runs at a very quiet 0.38 dBA (claimed).

Connectivity & Compatibility

This bracket requires a compatible liquid cooler with a standard Asetek mounting pattern. It works with most NZXT Kraken X-series AIOs as well as many third-party units (such as Corsair H-series with Asetek pumps). On the GPU side, it only fits reference-PCB cards from NVIDIA (GTX 10-series, RTX 20-series) and AMD (RX 480/580, Vega, and similar). Custom PCB designs or compact mini-ITX cards are not guaranteed — always check your GPU's board layout before purchasing.
The bundled 80mm fan uses a 3-pin connector and runs at 12V. Power consumption is minimal (around 1.8W). Installation requires basic tools (screwdriver) and some patience, but the manual is clear.

Product Info

Released around 2017, the Kraken G12 remains widely available through online retailers and NZXT's official store. The typical retail price is 6,000–7,000 JPY (approximately $40–$50 USD). It comes with a 2-year warranty from the Japanese authorized distributor. The package includes the bracket, one 80mm fan, mounting hardware, and an instruction manual.
Market positioning: This is a mid-range accessory that unlocks liquid cooling for GPUs without the need for a full custom loop. It's especially attractive for users who already own a Kraken X cooler — repurposing it for GPU duty is a cost-effective upgrade.

Best Use Cases

  • Gamers with existing liquid coolers: If you have a spare Kraken AIO (or plan to upgrade your CPU cooler), the G12 lets you transfer the old unit to your GPU. This dramatically lowers GPU temperatures, enabling higher boost clocks in titles like Cyberpunk 2077 or Microsoft Flight Simulator.
  • Noise-sensitive users: Stock GPU fans can be loud under load. By switching to a liquid cooler, you eliminate that noise almost entirely. The G12's VRM fan is near-silent, making the whole system unobtrusive.
  • Overclockers on a budget: Want to push your GPU further without investing in a custom water loop? The G12 combined with a decent AIO will keep core temperatures well below 60°C even with voltage increases.
    Not ideal for: Short or non-reference PCB GPUs (e.g., some mini cards or custom designs with unusual mounting holes). Also, if you don't already own a compatible liquid cooler, the total cost may reach $100+, so consider a dedicated GPU AIO instead.

Product Disclosure (Amazon)

  • Manufacturer: NZXT
  • ASIN: B06ZZN9N85
  • Note: This article covers a manufacturer-made product based on Amazon listing details.