Dual video graphics array connectors testing system

A dual VGA connectors testing system, comprising:

• an exchanging module, comprising:
• a RGB signal unit comprising a first group of RGB signal inputting terminals, a second group of RGB signal inputting terminals, and a group of RGB signal outputting terminals;
• a scanning and controlling signal unit comprising a first group of scanning and controlling signal inputting terminals, a second group of scanning and controlling signal inputting terminals, and a group of scanning and controlling signal outputting terminals;
• an address signal unit comprising a first group of address signal inputting terminals, a second group of address signal inputting terminals, and a group of address signal outputting terminals;
• a controlling module connected to the RGB signal unit, the scanning and controlling signal unit, and the address signal unit;
• wherein the first group of RGB signal inputting terminals, the first group of scanning and controlling signal inputting terminals, and the first group of address signal inputting terminals are connected to a first VGA female connector;
• the second group of RGB signal inputting terminals, the second group of scanning and controlling signal inputting terminals, and the second group of address signal inputting terminals are connected to another first VGA female connector;
• the RGB signal outputting terminals, the scanning and controlling signal outputting terminals, and the address signal outputting terminals are connected to a second VGA female connector;
• wherein the first group of RGB signal inputting terminals are connected to the RGB signal outputting terminals, the first group of scanning and controlling signal inputting terminals are connected to the scanning and controlling signal outputting terminals, and the first group of address signal inputting terminals are connected to the address signal outputting terminals when the controlling module outputs a first signal;
• the second group of RGB signal inputting terminals are connected to the RGB signal outputting terminals, the second group of scanning and controlling signal inputting terminals are connected to the scanning and controlling signal outputting terminals, and the second group of address signal inputting terminals are connected to the address signal outputting terminals when the controlling module outputs a second signal.