1. A system for supporting input/output (I/O) connectivity for a printed circuit assembly (PCA) in a hot aisle cabling or a cold aisle cabling arrangement, the system comprising:a chassis, the chassis being connected to a rack in a data center; and
a printed circuit assembly (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.