Verdict:

750W of stable power, but the configuration leaves a lot to be desired.

Although you may not have heard of Seventeam before, the company has been making PSUs since 1986, so it has plenty of experience.

Unlike the more basic ST-620PAF, the Thundering H80 has modular cables, making it easy to build a neat PC. The Thundering H80 is rated as a 750W PSU, most of which is provided by two 12V rails, individually rated at 25A and 35A, with a maximum combined output of 60A. However, the 12V rails are arranged in a strange manner, with 12V1 having to power everything bar the CPU. This seems like an odd setup - although modern CPUs are very power-hungry, the combination of motherboard, disk drives and graphics card(s) will have a heavier power draw. The interior is cooled by a quiet 135mm fan, and provides two 6-pin PCI-E power connections.

The Thundering H80 was able to provide a stable voltage on all of its rails and proved to be very efficient, averaging 84 per cent at full load.

The Thundering H80 is very keenly priced for a 750W PSU with modular cables, but the unusual configuration of the 12V rails may cause some compatibility issues - for example, if your PC has a particularly power-hungry graphics card. As such, the Thundering H80 may not be suitable for all high-end PCs, despite its 750W rating.

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