The Corsair CV550 and the EVGA 500 BQ are objectively tied, as each unit leads in two out of nine comparable specifications with five categories resulting in a draw. The most impactful advantage for the Corsair CV550 is its 17% higher count of SATA connectors. Conversely, the EVGA 500 BQ offers a significant 100% advantage in modularity, providing a fully modular design compared to the fixed cabling found on its competitor.

Users who prioritize storage expansion should select the Corsair CV550 for its superior number of SATA connectors. Those who value cable management and a cleaner build aesthetic should choose the EVGA 500 BQ, as its modular design is its primary benefit. Because both power supplies share an identical number of winning specifications, the decision rests entirely on whether your specific build requires more drive connectivity or the flexibility of modular cables.