This article covers Thermaltake Pure 20 LEDファン 200mm 800rpm ブラック.
Overview
The Thermaltake Pure 20 LED Fan is a 200mm case fan designed for low-noise builds while maintaining adequate airflow at a maximum speed of 800rpm. With a claimed noise level of just 1dB, it ranks among the quietest large fans on the market. The blue LED lighting adds a subtle glow to the chassis, making it a good choice for users who want a bit of visual flair without full RGB complexity. It is specifically compatible with Thermaltake's full-tower and mid-tower cases in the Chaser, Urban, and New Core series. This fan uses a sleeve bearing for longevity and features PVC blades shaped to reduce wind noise. Although the 1dB noise rating is unusually low (real-world conditions may be higher), the overall acoustic profile remains very quiet at low speeds. Thermaltake also offers non-LED and different LED color variants, so you can select according to your preference.
Compatibility Guide
This fan requires a 200mm fan mount location in your PC case. It is primarily designed for Thermaltake cases such as Chaser A21, Urban T81, and Core V71, but may fit third-party cases if they have 200mm mounting holes. The connector is a standard 4-pin (possibly non-PWM), so speed control will be via voltage regulation (DC mode) on a 3-pin or 4-pin motherboard header. Ensure your motherboard supports voltage control for the header you intend to use. Check the physical clearance and orientation before purchase.
Product Info
First released around 2014, the Thermaltake Pure 20 LED Fan remains available thanks to its reliable design and affordable price. Typical retail pricing is 2,500–3,000 yen, positioning it as a budget-friendly option for those who want a large, quiet fan. Warranty coverage is usually Thermaltake's standard two-year limited warranty, though this may vary by retailer. It targets entry-level to mid-range users building a quiet PC on a budget.
Best Use Cases
Quiet PC builders: The 200mm size allows the fan to move significant air at low RPM, making it ideal for noise-sensitive environments like home theaters or quiet office computers. Even at 800rpm, it can handle light to moderate cooling needs. Thermaltake case owners: If you own a compatible Thermaltake chassis, this is a drop-in replacement or upgrade that maintains brand consistency and ensures fitment. * Simple lighting enthusiasts: The blue LED provides a soft glow that doesn't require software control or RGB headers. It's perfect for users who want a subtle aesthetic without complexity.
Things to Consider
This fan uses a sleeve bearing, which is less durable than FDB or ball bearings and may develop noise over time under continuous operation. For 24/7 usage, consider investing in a more premium fan. Additionally, 200mm fans are not universal; many modern cases only support 120mm or 140mm fans, so verify compatibility before buying. The claimed 1dB noise level seems extremely low and may not reflect real-world noise once installed inside a case with other components. Finally, the LED is fixed blue and non-addressable, so if you want customizable RGB lighting, look elsewhere.