Layout, design and features …
The following 360° panoramic view shows the Arctic P12 Pro Reverse A-RGB fan in detail.
The Arctic P12 Pro Reverse fan has been redesigned from the ground up. Every aspect of previous designs has been scrutinized and optimized. The result is a high-performance fan measuring 120x120x27mm, which is specifically designed for use in dual-chamber cases. What makes it special is that the rotor blades have been reversed compared to conventional fans, so that the air flows out of the front of the fan. Fans of this design are therefore particularly effective in cases with large viewing windows. The five rotor blades are strongly curved to generate the highest possible pressure. They are also enclosed by a ring. At 40mm, the hub diameter is not particularly large, even though it contains a 400mA high-performance motor and 12 addressable 2nd generation RGB LEDs. However, three P12 Pro Reverse fans may be too much for a conventional fan connector with a maximum of 1A and overload the connection. The speed range is between 500 and a brutal 3000 revolutions per minute, and at PWM values below 5%, the fan even stops completely. DIY enthusiasts should be aware that the P12 Pro Reverse cannot be operated from a DC power source. Even if another fan with a tacho signal is connected in parallel to the P12 Pro Reverse, the P12 Pro Reverse will refuse to operate. For proper operation, the P12 Pro Reverse must be controlled by PWM.
To prevent excessive noise in the housing at speeds of up to 3000 rpm, Arctic has equipped the P12 Pro Reverse with rubber inserts at the corners and a vibration-damping fluid bearing for the rotor. With 124m³/h or 73cfm, the P12 Pro Reverse not only achieves high speeds, but also effectively converts them into high air flow. When attaching the fan, care must be taken not to pinch any cables, as the cables in our test samples repeatedly slipped out of the channels in the crossbars, as can be seen in the next picture.
The struts were designed in a teardrop shape to minimize air resistance and reduce air turbulence. There is also a very special detail hidden in the bore in which the rotor rotates. The bore cross-section has been tapered on the inlet side. The hole in the frame and the inner diameter of the ring surrounding the rotor blades have the same diameter. This reduces air backflow and turbulence, which improves efficiency and performance.
The two connection cables for fan control and RGB control are each 400 mm long and, in addition to the mandatory plug, also have an additional socket each for connecting additional fans or RGB elements. A standardized 4-pin PWM connector is used for the fan, and a standard 3-pin RGB connector is also provided for the lighting. Unfortunately, clips to hold the loose RGB connectors together are not included in the scope of delivery.
Arctic P12 Pro Reverse A-RGB Test setup and results …