14 DAY TRIAL // Fans may not be directly essential in the successful operation of a computer, but they are definitely critical in their survival, since the CPU and GPU, at the very least, would smoke and burn in their absence. That is why companies like Zalman have whole R7D divisions dedicated to their creation.
Zalman has just released its most advanced fan yet, called ZM-DF12 and likely to be used in future high-end CPU coolers, as well as fansinks for graphics cards.
Until then, it will score decent sales (probably) as a case fan. After all, it has very unusual LED lighting, and a dual-impeller design that increases air flow at lower speeds.
The existence of the LED isn't that odd in itself. It's the spot where the LED is located, namely on the top side of the motor cap, illuminating a blue X.
As for the airflow benefits of the dual-impeller design, they are critical in ensuring silent operation. After all, the slower a fan spins, the less noise it makes.
Speaking of which, the rotary speed is of up to 1600 RPM (63.76 CFM of air, with 33 dBA noise output), but can be turned down to 1200 RPM or 800 RPM thanks to an in-built controller (input received via a 3-pin connector).
Sadly, pricing and availability details don't exist for the Zalman ZM-DF12 yet.