Foldable USB connector

A foldable USB connector, comprising a first folding part (10), a second folding part (20) and an elastic strap (30):

• Said first folding part (10) coordinates said second folding part (20) to form a connective structure (40) in between for development of an axis (AO) by which both said first folding part and said second folding part are turned to become unfolded or folded;
• Said first folding part (10) and said second folding part (20) are designed to have holding grooves (11, 21) opposite to each other for development of a through slot (50) in which said elastic strap (30) is compactly held;
• both said first folding part (10) and said second folding part (20) on which said elastic strap (30) applies a restoring force are quickly unfolded in accordance with said axis (AO) when a user exerts his/her strength on external end planes of said first folding part (10) and said second folding part (20) which have been folded;
• Said first folding part (10) is provided with a plurality of metal contacts (102) on a first external surface (101);
• said second folding part (20) is provided with a plurality of metal contacts (202) on a second external surface (201);
• said metal contacts (102, 202) are extensively distributed on an end plane (103) of said first folding part (10) and an opposite end plane (203) of said second folding part (20) so that said first folding part (10) and said second folding part (20) which are unfolded and electrically connected become a USB connector (1).