Uthotho lwe-ODOT B ludityanisiwe imodyuli ye-I/O enemodyuli edityanisiweyo ngaphakathi.Ukunikezelwa kwamandla kunye nebhodi ye-COMM isezantsi, kwaye imodyuli ye-IO inxibelelana nebhodi ye-COMM nge-backplane (imodyuli eluhlaza njengezantsi).Inokuxhasa ulwandiso olukhulu lwe-4 IO slot (kuphela i-2 IO slots efakwe kumzobo ongezantsi).