The next product in our review is the SilverStone AP141 fan which is shipped in a small cardboard box with a small cutout in one of its sides:
Like most other products boxes in this review, the SilverStone one is quite informative. It contains a power adapter for 5, 7 and 12 volts, four silicone pins and four self-tipping screws.
The fan is manufactured in China and costs $23. Its warranty is only 1 year long.
The SilverStone AP141 looks similar in design to the above-discussed LEPA VORTEX (LPVX14P):
First of all, we mean the air-focusing grid design, which SilverStone first introduced to the PC market back in 2010. The SilverStone has a 4mm larger impeller and a 3mm smaller motor than the LEPA fan though. The frame is also different, having a smoother interior surface.
SilverStone also has a video clip demonstrating the focused air flow at the fan's output that they have been showing since 2010:
As you can see, the operation principle and the result with resistance added is similar to the LEPA fan in a different environment.
The SilverStone AP141 can be regulated with the included cable and works at one of three speeds: 700, 1000 or 1500 RPM. The air flow is declared to be 28.3, 41.1 and 64.3 CFM at 18, 20.9 and 30.1 dBA of noise. The static pressure isn't high at only 0.39, 0.73 and 1.55 of water in the three speed modes.
The fan runs on a fluid dynamic bearing with a declared service life of 50,000 hours or 5.7 years of nonstop operation. The sticker on it contains information about its maker, model name, voltage and current.
The peak power consumption is specified to be 2.64 watts. The cable is 500 mm long.