explains Roland Mossig (Noctua CEO).While the existing NF-A4x10 5V and NF-A4x10 FLX (12V) models have become a popular choice for 3D printer hot-end cooling and are now used in the latest Prusa i3 MK3 3D printer, the new 5V PWM and PWM (12V) versions are ideal for 3D printers that offer PWM-based speed control as well as all other 40mm applications with PWM support. By contrast, the new 5V and 5V PWM versions of the award-winning NF-A8 (80mm), NF-A9 (92mm), NF-A12x25 (120mm), NF-F12 (120mm), NF-A14 (140mm) and NF-A20 (200mm) are larger than any of Noctua’s previous 40 and 60mm size 5V offerings and thus aim to open up new markets that range from bigger devices and home appliances all the way to cabinet cooling, green walls and room ventilation.says Roland Mossig (Noctua CEO).All of the new 5V models include a USB power adaptor cable that allows the fan to run on devices with USB host ports, power banks or USB power supplies such as those used by smartphones. When replacing existing 5V fans, the supplied OmniJoin™ adaptor set makes it possible to connect the new models to proprietary fan headers and, thanks to the integrated polarity protection, there’s no risk of damaging them due to reverse polarity.Like all Noctua fans, the new 5V and 5V PWM models feature an MTTF rating of more than 150,000 hours and come with a full 6-year manufacturer's warranty.All models will be available via Noctua’s official Amazon and eBay outlets within the next few days:Other sales partners will receive stock shortly.The suggested retail prices are as follows: NF-A20 5V PWM : EUR 29.90 / USD 29.90 NF-A12x25 5V PWM : EUR 29.90 / USD 29.90 NF-A14 5V PWM : EUR 21.90 / USD 21.90 NF-F12 5V PWM : EUR 19.90 / USD 19.90 NF-A9 5V PWM : EUR 17.90 / USD 17.90 NF-A8 5V PWM : EUR 16.90 / USD 16.90 NF-A4x10 PWM : EUR 14.90 / USD 14.90Designed in Austria, Noctua’s premium cooling components are internationally renowned for their superb quietness, exceptional performance and thoroughgoing quality. Having received more than 6000 awards and recommendations from leading hardware websites and magazines, Noctua’s fans and heatsinks are serving hundreds of thousands of satisfied customers around the globe.