dell poweredge 9th generation servers

here a list of what i have as far models
dell poweredge 2850 two of them
dell poweredge 2950 two of them
dell poweredge 6800 one 
dell poweredge 2650 one
dell poweredge 2550 one
dell poweredge 2450 one
dell poweredge 2500 three of them 
one vault 122T