Apexgaming is not top of mind when considering the purchase of a PSU, but with a 10 year warranty it seems worth seeing how it fares on TechPowerUp's test bench.  On paper this fully modular PSU is capable of providing its full 850W to its single 12V rail, or it can provide 25A to the 3.3V and 5V if you somehow have a component which would require such exceptional power.  Overall, the quality of power provided is acceptable, but not top notch, which makes sense at it's $110 price point.  TechPowerUp also noted some issues with the fan, which you can read about in detail here.

"The AG-850M is made by Solytech and belongs to Apextechusa's new Apexgaming PSU line. It has a capacity of 850W, a fully modular cable design, and is backed by a ten-year warranty. On paper, everything looks good; however, in real life, things are not always at their best."

Here are some more Cases & Cooling reviews from around the web:

CASES & COOLING