From Shams Charania:

That "partial guarantee" for Hunter is likely just for training camp, and he'll probably have an uphill climb to make the roster. However, of important note is that the Kings can designate four cuts from their training camp rosters to the Reno Bighorns, if those players choose to go to the D-League.

I can't say I know a whole lot about Vince Hunter, but DraftExpress, which spends an enormous amount of time scouting players and providing insight on NBA prospects, describes him as an energy guy who has exceptional athleticism and "multi-positional defensive potential". Hunter averaged 14.9 points, 9.2 rebounds and 1.7 assists as a sophomore at UTEP last season and led the CUSA conference in PER, Rebounds, 2 Point Field Goals, and Defensive Rating.