hello everyone !

i have a mac pro quad 2010 and a Fireface 400 that i Power using the FF800 Port.

when i turn the computer off , the fireface remains on with the little red led right besides the "Host"
i wonder if its safe to leave it that way (everything is backed up by a UPS) even when the computer is off ?
or, should i turn it off and if so than ... How ?!

i dont have a Power switch on the unit

thanks ahead !