You mean after you graduate? I think you'd likely start around your minimum, but you can easily work your way to at least 15. 20 might be pushing it but the more specialized your knowledge gets the easier it will be and it's not out of reach.
But you'd need to continue to learn to get there. Tech support has a very wide range of pay, from low paying jobs close to minimum wage to higher level techs who can make very decent pay.