Banuelos was sent outright to Triple-A Norfolk on Thursday, Roch Kubatko of MASNSports.com reports.
Banuelos was DFA'd by Baltimore on Monday -- just a day after his contract was selected from Triple-A -- and he'll elect to remain with the organization after clearing waivers. The 27-year-old backstop has slashed .225/.360/.352 across 86 plate appearances in the minors this season.