Hello Guys, I have a general question regarding replaceable internal power supplies used in those Summit series, where both version of PSU are allowed (like X460/X460-G2, X480, X670/X670-G2 - and probably X620). Can I use both: DC PSU and AC PSU at the same time in one switch ? This is the customer's requirement. I've found some information for legacy X650 series here: http://documentation.extremenetworks.com/summit_16/Summit_Family_HW_Install/Power_Supplies/r_summit-replaceable-internal-power-supplies.shtml It says that combining DC and AC supply in the same switch is not allowed, but it doesn't say it's forbidden. Anyone got some idea ? REGARDS, Robert