Video and more pictures: https://buzzheavier.com/lwrmtq6pz4lu
Originally a shower rack, I removes the wheels and fastened it to my TV shelf with wires. The fans of the single board computers where so loud and ineffective that I removed then and instead installed six of Noctua’s cheapest chassi fans. After a while, I noticed that dust builds up, so I fastened these grease filters with some Velcro. Easy to take off and clean. I know it looks ugly as they are weighed down in the corners, but their purpose is to catch dust, not to walk the red carpet. 😎


If this site isn’t bullshitting me, then the 60-ish millimeters wavelength of the 5GHz band passes through the gaps between the bars with ease too. :)
https://www.everythingrf.com/rf-calculators/frequency-to-wavelength