Over the past few years Ellis, a four-star prospect, has taken unofficial visits to the schools involved, he's had them in-home for visits and on Wednesday at Wichita (Kans.) Heights he announced his college decision.
Ellis has opted to stay close to home and play for Bill Self at Kansas.
"All the schools are great, but I just felt so comfortable at KU," Ellis said at his press conference.
Ellis is Kansas' second verbal pledge in the 2012 class. He joins three-star recruit Zach Peters to make up their current class.
During Ellis' junior season at Wichita Heights, Ellis averaged 22.1 points and just under eight rebounds a game, while leading the Falcons to their third straight 6A state title.
Ellis ranks No. 33 overall and No. 7 at the power forward position in the 2012 recruiting class.