Noctua has released NA-IS1 spacers, which for $15 will improve the efficiency of computer fans

Noctua has released special NA-IS1 spacers for its fans.
According to the manufacturer, the new products increase fan efficiency in certain usage scenarios.Image source: NoctuaThe company claims that the special spacers are designed to improve airflow in cases where fans have to draw air through various perforated surfaces, including radiators, mesh panels and filters.
If a fan is installed very close to a perforated surface, turbulence can be created, and with it comes negative aerodynamic and acoustic effects.By adding 5mm between the fan and the obstruction, the NA-IS1 spacers can significantly reduce inlet turbulence, which will not only improve acoustics, but also help fans increase airflow, according to the developer.Laboratory tests show that the use of spacers not only increases airflow by 4.4 m3/h on average, but also reduces fan noise levels Noctua NA-IS1 spacers will be available in NA-IS1-14 Sx2 for 140mm fans and NA-IS1-12 Sx2 for 120mm fans.
Black versions of the NA-IS1-14 chromax.black Sx2 and NA-IS1-12 chromax.black Sx2 will also be available.
The company indicates that the NA-IS1 is compatible with all Noctua 120 × 25mm and 140 × 25mm fans.All versions of the NA-IS1 come with two spacers, anti-vibration pads, and a set of M3 and UNC 6-32 screws.
A pair of NA-IS1 spacers costs $14.9 or euros, depending on the region.
In addition to the NA-IS1 spacers, Noctua has also released the new NA-AVG2 anti-vibration spacers for 140mm fans.
Like the NA-AVG1 spacers for 120mm fans, the new NA-AVG2 spacers are made of soft but very durable rubber to help dampen minor fan vibrations as well as reduce airflow loss between the fan and heatsink.
The NA-AVG2 will be available in both traditional brown and chromax.black.
A set of three pads will cost 9.90 euros or dollars.

Arctic unveils 140mm P14 Slim PWM PST fan with thickness of only 16mm

Arctic announced P14 Slim PWM PST case fan, designed for use in systems with limited internal space - compact desktops, home media centers, etc.Image source: ArcticThe novelty has 140mm diameter and is 16mm thick against 25-27mm for standard products in this format.
It is based on a rugged hydrodynamic bearing and the impeller has seven blades.The rotation speed is regulated by pulse-width modulation (PWM) in the range from 150 to 1800 revolutions per minute.
In 0 DB Mode, the fan can be stopped completely, producing up to 88.35 cubic meters of air flow per hour.
The maximum static pressure is 1.35 mm water column.
Overall dimensions - 140 × 140 × 16 mm, weight - 109 g.Fan Arctic P14 Slim PWM PST is already available for order for an approximate price of 13 euros.
The manufacturer's warranty is six years.

Alphacool released Rise Aurora fans in white color

Alphacool announced new Rise Aurora fans with spectacular addressable backlighting.
Models with 120mm and 140mm diameters made their debut.Image source: AlphacoolThe solutions are entirely in white color: the fan guard, impeller, and anti-vibration pads are also in white.
Backlighting of the younger version contains 20 LEDs, the older - 24.
Effects can be adjusted and synchronized via a compatible motherboard.The Rise Aurora 120mm model's rotational speed ranges from 0 to 2500 rpm and is controlled by Pulse Width Modulation (PWM).
Airflow up to 118.9 cubic meters per hour is produced, while noise level does not exceed 31.5 dBA.
Static pressure is up to 3.17mm water column.The 140mm diameter version of the Rise Aurora rotates at 0 to 2000 rpm.
Airflow is up to 154.1 cubic meters per hour with a static pressure of 2.20 mm water column.
Noise level is up to 38,4 dBA.
MTBF (Mean Time Between Failure) is 30 thousand hours.
The price of the junior version is 19 euros, the senior version is 22 euros.