This thing is about as plug and play as it gets. But it is LOUD, I had this in my rack in my attic and could be heard clearly from anywhere in my house aside from the basement.If you want to swap out the fans for quieter ones you just have to wire it up yourself, the mounts inside are 120mm. If you buy 3-pin fans you will have to convert them to a 2-pin setup or purchase a separate board to power the fans.Moves lots of air. With lots of Noise! Well made, bare bones but it works by moving the heat away from my rack mounted NVR security system. Robust for the price. 4 stars because the quoted dB Noise range ain’t even close. Has to be pushing 90dB or better...constant noise from the unit.Just got it and it it already rackmounted. Supposed to be quiet but it is quite noisy. Thanks,Fans are quiet, however had to loosen screws both on top and bottoms of each fan mount otherwise the fan module binds on the metal frame and causes the motor to overheat or rub and make horrible noise. Metal frame flexes too much which is partly why fans end up binding. It's ok but next time will spend the extra money for a heavier gauge steel and or quality.It moves a lot of air, but it's noisy. I'm using it on an open rack in the basement and it might be too much volume for a quiet space. Since it has a metal upper and lower plate, it's strong, but it's very heavy too. I may convert to several smaller, quieter fans strategically placed on the rack instead of one massive fan.The rack fans are okay in my opinion. They don't move as much air as I would like, but for the price they will do for now. The fans help to suck the hot air from the fans on the 3560 below it and pull it up through the top of the rack (see photo).This product is not good I bought it and 35 days later started first fan to fail then two months later second fan now almost year and half only one fan works half way. DON'T BUY this save your moneyKeeps my Mesa Boogie cool!Muy mal.viene incompleto(faltan todos los ventiladores y la instalación) y encima no hay más