Plaxico Burress is due to turn himself in at 9:30 a.m. today to begin a two-year prison term.

The ex-Giant — who shot himself in the thigh in a Midtown club last November — pleaded guilty last month to attempted gun possession to avoid serving a mandatory three years if found guilty of possession. He bought his gun legally in Florida but lacked a New York license.

His time behind bars could drop to 20 months with good behavior. But the self-inflicted wound cost him the $27 million left on his Giant contract. And under NFL rules, he can’t sign with any team until he’s completed his term.