The FPS Review reviewed the be quiet! Dark Rock Pro 4
A quote from the article:
Introduction On our test bench today we have the be quiet! Dark Rock Pro 4 which sits atop be quiet!s premium series of air coolers. We will strap it to our Air Cooling test platform that features a Ryzen 7 2700X processor to see how it fares against other air coolers that have passed across.be quiet! Dark Rock Pro 4 Review