Shielding shell of a connector

A shielding shell adapted for a connector, comprising:

• a front shell curved from a metal plate and having a base board and two opposite side boards;
• and
• a rear shell having a base plate of which a front edge is connected with a rear edge of the base board of the front shell, and two side plates extending downward from two opposite side edges of the base plate and each connected with a rear edge of the side board of the front shell by virtue of a strengthening structure,
• wherein the strengthening structure includes a first strengthening arm designed at a middle of the rear edge of the side board and extending towards the corresponding side plate of the rear shell from a rear edge of the side board of the front shell, and a second strengthening arm designed at a distal end of the front edge of the side plate and extending towards the corresponding side board from a front edge of the side plate to be buckled with the first strengthening arm so as to secure the side plate and the corresponding side board together.