External Appearance

Visually, the Antec EDGE 550W certainly stands out from the crowd. Actively cooled units with perforated sides are rare to begin with, let alone units with an output of just 550W. This is likely to be more of a decorative measure than anything needed for cooling, as a large portion of the openings are blocked by the plastic shielding. Despite the output, the chassis of the Edge is 170mm long, making it slightly longer than a standard ATX unit and that could pose a problem in very tight compartments.

Antec made numerous small modifications to enhance the appearance of the unit, including a parallel grid fan guard, badges on the sides and rear of the chassis, and a semi-transparent white LED fan. The badges on the sides are installed in such a way that their orientation when looking at the unit from a left side panel window will be correct, regardless of whether the unit has been installed with the fan facing upwards or downwards. On the front side of the chassis are the connectors for the modular cables, as well as a switch that can turn the LED lighting off.

Internal Design

The 135mm semi-transparent fan is supplied by Hong Hua, a common supplier of fans for use in PSUs. It has a fluid dynamic bearing engine and a maximum speed of 2000RPM. Our instrumentation reports a maximum unobstructed volume flow of 70.5CFM.

Seasonic is the company behind the creation of the Antec's EDGE series. The EDGE shares the same platform as the Seasonic S12G but there are notable differences in the selection of components. There are four heatsinks, with the smallest one holding the primary rectifier bridge, the one near the edge of the PCB the active PFC components, and those on each side of the main transformer handle the inversion and conversion transistors of the primary and secondary stage respectively.

A small shielded PCB is attached to the rear of the AC receptacle, housing some of the filtering stage components, while the rest can be found on the main PCB. There are a total of six Y capacitors, two X capacitors and two filtering inductors, which are more than adequate for a good filtering stage. Moving towards the APFC stage, we see the blue Hitachi 330μF/420V capacitor next to a large filtering coil that has been drenched in glue. The rest of the capacitors are a mix of Nippon Chemi-Con and Rubycon electrolytics, as well as many polymer capacitors from Enesol.

The build quality of the Antec EDGE 550W is outstanding. Not only is the soldering job flawless, but the factory also performed an excellent assembly job. Glue has been applied on all critical components, ensuring the mechanical cohesion of the unit and minimizing the risk of high frequency vibration noises (also known as "coil whine"). Plastic sheets and pins ensure that no component will short another. Our only complaint lies with the design. As this platform has not really been developed purely for fully modular designs, there are a lot of cables causing some clutter near the left edge of the unit.

Introduction, Packaging & Bundle Cold Test Results
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  • Daniel Egger - Saturday, October 4, 2014 - link

    > For non gaming rigs, it's more like 40-70w just browsing the web & using office, 100w max full video encoding, etc, and that could easily run off a Pico-PSU laptop style power brick.

    In fact HP and and a few other companies are selling not only all-in-ones but also mini-tower PCs which are powered by external 19V power bricks. I ordered one of those a couple of months back for a family member. Sure there's no discrete GPU in that but it still offers quite a bit of bang and is perfectly capable of handling any typical office activities and even light gaming. I couldn't make it draw more than 70W at the wall.
  • KAlmquist - Sunday, October 5, 2014 - link

    Referring to 28 watts out of the power supply, and 37 watts measured at the wall, the reviewer writes that "most systems will be closer to twice that power draw at idle." So I'd like to underline the fact that you are measuring 37 watts at the wall idle even with a GPU.
  • Morawka - Saturday, October 4, 2014 - link

    whats wrong with all the images on this site? they are all broken. Same with daily tech. (reset your cache, you'll see.

    missing on both my iphone and desktop.
  • TelstarTOS - Saturday, October 4, 2014 - link

    I've seen this 5V regulation issue on another PSU, I believe Seasonic's own latest G-series. I dont like it but it's within specs anyway.
  • bhima - Wednesday, October 8, 2014 - link

    Hrmm... $120 is a steep price to pay for silence on a component that is typically the least offender as far as noise in concerned (ie: Case, CPU fan and GPU are the big noise makers).

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