Supporting input/output (I/O) connectivity for a printed circuit assembly (PCA) in a hot aisle cabling or a cold aisle cabling arrangement includes a chassis, the chassis being connected to a rack in a data center, and a PCA slidably connected to the chassis via a tray, in which the PCA comprises a number of bill of material (BOM) options to customize the PCA and a single basic input/output system (BIOS) image, and in which the PCA is physically shifted on the chassis to accommodate a cold aisle cabling or a hot aisle cabling arrangement of the data center.