Behringer N11999 Hot ((top)) Here

: For bus-powered interfaces, using low-quality USB cables or hubs can cause power delivery instabilities that lead to thermal spikes. Behringer X1222USB Power Supply Failure - Fix

For many Behringer analog mixers and audio interfaces, generating heat is a standard part of their operation. Models such as the Xenyx 1202FX behringer n11999 hot

Buy a quiet 120mm USB computer fan (Noctua NF-S12B is the gold standard). Place it on top of the unit blowing down into the vents, or behind the unit blowing out . Power it from a USB phone charger. This drops the temperature by 15°C to 20°C instantly. : For bus-powered interfaces, using low-quality USB cables

While "N11999" is not a specific Behringer product model, regulatory compliance mark : For bus-powered interfaces