Geeknetic.es reviews the be quiet! Pure Power 13 M 850W, highlighting its excellent balance of price and performance which led to the price/performance award. The author emphasizes its compact, modular design and support for modern standards like ATX 3.1. What stands out most is its single 12V rail and 80 PLUS Gold certification. The reviewer praises its quiet operation, efficient power delivery, and suitability for mid-to-high-end PCs, calling it a reliable and well-rounded power supply.