Burton came from a goal down and the setback of having a player sent off to beat Stevenage at the Pirelli Stadium.
John Nurse gave the visitors the lead when he struck home a 15th minute shot after a cross from George Boyd.
Midfielder Aaron Webster was then dismissed for a professional foul on goalscorer Nurse two minutes later.
But Burton equalised through a Keith Gilroy effort before Paul Carden's right-footed shot hit the bottom-right corner after 89 minutes.
Burton Albion: Poole, Brayford, Tinson, Austin, Webster, Corbett, Carden, Fowler, Gilroy, Clare (Harrad 84), Ducros (Holmes 74).
Subs Not Used: Taylor, Rowett, Shaw.
Sent Off: Webster (18).
Goals: Gilroy 55, Carden 89.
Stevenage: Potter, Fuller, Gaia, Henry, Nutter, Nurse, Miller, Beard, Binns, Boyd, Morison.
Subs Not Used: Julian, Oliver, Dobson, Deen, Scaley.
Goals: Nurse 16.
Ref: M Brown (England).