Pack de 2x Ventiladores de Repuesto Silenciosos Bajo Ruido para Conmutador UniFi US-48-750W PoE+
Ubiquiti UniFi Switch US-48-750W PoE. Super Silence. Note: There are total of 4 fans (2 fans on each side) if you want to replace them all. This is most quiet fan in it's form factor. Sunon fans original used.