I have a 4 year old HD Plex unit. Powers my server. No problems, however do a little research and you’ll find there have been plenty of problems with this unit with other users. Not sure of the current configuration but it does seem more robust. Larry, the owner, told me a few years ago he did not make the unit with the goal to improve sound quality specifically, but just as a portable external LPS. Later models do seem to have sound quality improvement in mind though. There are some comparisons online vs. other high-end LPSs, the HD Plex usually does not take first place. All this said, it certainly is a better power source than a wall wart or using power from a computer and is reasonably priced. And it is very versatile, having the ability to power multiple devices at multiple voltages.