The Corsair AX1600i is the objective winner of this comparison, securing more individual specification victories than the be quiet! Straight Power 12 1000W. While both units offer distinct connectivity benefits, the Corsair AX1600i holds the most impactful advantage in its total number of PCIe connectors, which represents a 100% improvement over the competition. This superior capacity for peripheral expansion makes it the more robust choice for systems requiring extensive hardware support.

Users should select the Corsair AX1600i if their primary requirement is maximizing the number of available PCIe connectors for complex multi-GPU or high-end peripheral configurations. Conversely, the be quiet! Straight Power 12 1000W is the better option for builders prioritizing the 12VHPWR connector, as it offers a 100% advantage in that specific interface category. Choosing between these two units depends entirely on whether your build necessitates more traditional PCIe cables or the modern 12VHPWR standard.