Industry's Smallest microSD Card Connector Molex continues to advance micro technology with the industry's smallest overall microSD Card Connector. The new Molex 503398 Series push-push version has a profile height of 1.28mm (.050') and width of just 13.10mm (.516') and retains many of the same reliable features as the 503182 version. Improvements for the Molex microSD Card Connector Series 503398 include housing and shell modifications for smoother card extraction, card polarization chambers to prevent incorrect card insertion, and an integral detect and anti card-sticking feature that provides dual functionality and space savings.