In various examples, a system comprises a first plurality of power supplies comprising a first plurality of external electrical connectors, and a second plurality of power supplies comprising a second plurality of external electrical connectors. The first plurality of power supplies may be symmetric with the second plurality of power supply about an axis of symmetry. The system further comprises a common fan module. The common fan module comprises a fan to cool the first plurality of power supplies and the second plurality of power supplies, a power inlet, a third plurality of electrical connectors, a fourth plurality of electrical connectors. The third plurality of electrical connectors are capable of being electrically coupled to the first plurality of electrical connectors, and the fourth plurality of electrical connectors are capable of being electrically coupled to the second plurality of electrical connectors.