The Nerazzurri have completed the loan signing of the Porto defender, with the club reportedly having the option of making the move permanent at the end of the deal
Rolando will team-up with former coach Walter Mazzarri, whom he played under at Napoli last season. Inter have the option to make the move pernament at the end of the deal, according to reports.
The 27-year-old made only seven Serie A appearances during that spell with the Partenopei since joining them in the January transfer window.
Inter's club website said: "[Rolando] is ready to join the squad after their American tour. Inter and the fans give him a warm welcome."
The Nerazzurri are also hoping to secure the services of Chelsea's Wallace next week. The wing-back, 19, spent last season on loan to Brazilian side Fluminense.