An apparatus is provided, where the apparatus includes a plurality of input/output (I/O) ports and a controller. A first port, a second port, and a third port are to be respectively coupled to a first device with a first class type, a second device with a second class type, and a third device with a third class type. The controller is to determine that individual ones of the first and second devices are to perform asynchronous transfer with the apparatus, and that the third device is to perform a transfer that is different from the asynchronous transfer. The controller is to allocate bandwidth to the first and second I/O ports, based at least in part on the first class type and the second class type. The controller is to ignore the third class type, while allocating bandwidth to the third I/O port.