We have several “ConnectX-5 MT27800” 100GB cards. We need to buy a spare one. Sales told us, that these cards are “end of sale”. They gives us this to choose from “ConnectX-5 EN Cards”. There we have two 100GB options: MCX516A-CCAT and MCX516A-CCHT (with Enhanced Host Management). I am not sure what is “Enhanced Host Management” in adapters and do we need it ?