Electrical connection structure and electronic device

An electronic device, comprising:

• a first circuit board, wherein a fourth connector is arranged on the first circuit board;
• and
• an electrical connection structure, wherein the electrical connection structure comprises,
• a circuit board, wherein the circuit board comprises a first group of signal traces, a second group of signal traces, a first reference ground, and a second reference ground;
• and
• the first reference ground faces the first group of signal traces, the second reference ground faces the second group of signal traces, and the first reference ground and the second reference ground are spaced apart from each other;
• a first connector, wherein the first connector is arranged on the circuit board, and the first connector comprises a first group of terminals and a second group of terminals;
• and
• a third group of terminals and a fourth group of terminals, wherein the third group of terminals and the fourth group of terminals are arranged on the circuit board, the third group of terminals are electrically connected to the first group of terminals by using the first group of signal traces and the first reference ground, and the fourth group of terminals are electrically connected to the second group of terminals using the second group of signal traces and the second reference ground;
• and
• the first connector of the electrical connection structure is electrically connected to the fourth connector of the first circuit board.