This disclosure describes features and methods of formation of a data port for a portable electronic device. The portable electronic device includes a device housing having a wall defining a data port opening. An anchoring feature is formed along a portion of the wall defining the data port opening. A structural support member is positioned within the data port opening and reinforces the data port opening. A polymer material fills a gap between the structural support member and a portion of the wall defining the data port opening. The polymer material engages the anchoring feature to retain the structural support member within the data port opening.