Zotac Zbox OI520 Plus "Sphere" SFF PC Review

Power Consumption & Noise

Throughout all of our benchmarking and testing, we monitored how much power our test systems consumed using a power meter. Our goal was to give you all an idea as to how much power the base platform configuration used while idling and while under a heavy workload. Please keep in mind that we were testing total system power consumption at the outlet here, not just the power being drawn by the processors alone.

Total System Power Consumption
Tested at the outlet

The Zotac Zbox OI520 Plus posted solid if unspectacular benchmark scores, but it shines brightly in our power consumption test. It pulled just 27W when under load, which is just a hair less power hungry than the Gigabyte Brix Projector and a few watts more than the underpowered Zotac Zbox HD-AD03.

At idle, though, this system was best in class, pulling a mere 8W from the wall.

In terms of noise, the system has an impressively quiet fan and was nearly silent at idle, although it emitted a slight hum under load that keeps changing pitch. It’s not loud per se, but the pitch changes are somewhat distracting. If your movie or video game is turned up at all, though, you won’t hear it.

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