be quiet! SFX L Quiet Performance Power 600W 80 Plus Gold Quiet Performance Power Supply for Mini ITX Pcs and Compact Gaming Systems | BN639

Customers praise the power supply's build quality, describing it as a high-quality small form factor unit. However, the quiet operation receives mixed feedback, with some finding it very quiet while others report very annoying sounds. Moreover, reliability is a concern, with multiple customers reporting that the power supply stopped working suddenly or didn't work out of the box.