One thing becomes painfully obvious once the Zeus 1200W is unpackaged: this is a massive power supply. Even with the fully modular connectors uninstalled, it still runs 21.5cm (8.5”) in length which could be a problem for some cases. On the other hand one would assume that if you have $400 to spend on a power supply you would have spent the money for a suitably massive case as well.

Overall, the design of this power supply can only be called sleek since there are no overly large 120mm or 140mm top-mounted fans breaking its smooth lines. Closer to the modular interface there are small perforations in order to facilitate airflow into the housing to cool the components. On many power supplies with a single 80mm exhaust fan, we see these perforated grilles on the same side as the connectors. However, since the modular interface takes up an entire inwards-facing side of the Zeus, Silverstone had to move these air inlets somewhere else.

The other end of the Zeus holds the 80mm ball bearing exhaust fan as well as the usual power switch, mounting points and AC power input. The matte black finish seems to be quite resistant to scratches and it really does give this power supply a stealthy feel…even though it is humongous.


On the top side of the Zeus there is a simple diagram of the modular interface which not only indicates which connector goes where but also tells you which +12V rail is associated with each connector. This comes in handy when you are hooking up a pair of high powered graphics cards and you don’t want to trip a particular +12V rail’s OCP circuit.

The modular interface itself has a very simple and straightforward layout which is bordered by yet another small air intake grille. However, due to its color (or lack thereof) it is a bit hard to attach additional cables when the Zeus is installed in your case since lining up a black connector with a black housing is next to impossible.