Corsair TX vs. OCZ ZT 550W

OCZ ZT550W Overview

The OCZ ZT550W comes with the usual assortment of parts: you get an extensive user manual, a US/UK/Europe power cord (depending on your location), and the necessary mounting screws. In addition, the power supply has cable management, so some modular cables with a common sleeving are placed in the package as well.

Rated at up to 540W, the +12V rail can deliver nearly the full power of the PSU. +3.3V and +5V are rated at a maximum capacity of 24A each, with a combined output of 140W. Compared with most modern high-efficiency power supplies (like Corsair), OCZ has no DC-to-DC converters inside. In fact they use mag amp regulators for the smaller outputs which is a suitable solution too.

The whole housing is coated with a black finish. The fan grille with a OCZ logo in the middle is black too, and both sides of the case have an OCZ logo.  As usual the ventilation holes are honeycombed and a large power switch is located next to the AC input. On the front are modular cable connectors, color coded for PCIe (grey) and peripherals (black). The depth of the device is 17,5cm, which is quite much for a 550W power supply.

Again the 24-pin and CPU cables are relatively long with 55-60cm. Both 6/8-pin cables are 5cm shorter than the ones Corsair used. The cable sleeving somewhat better but they still use different colors for all wires and no flat cables. The FDD connector is a separate adapter that splits off a Molex connector if needed; there are six Molex connectors available. The peripheral cables have exactly the same lengths like the ones from Corsair, what a coincidence!