TruePower Quattro 850 W is a power supply from Antec featuring modular cabling system, four auxiliary PCI Express power cables for video cards, active PFC, efficiency above 80% and the very traditional ATX looks, with a small 80-mm fan on the rear side. The manufacturer promises that this unit can deliver its labeled power at 50º C. Sounds promising, but can this unit really deliver 850 W? Let's see.

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