Pin arrangement and electronic assembly

An electronic assembly, comprising:

• two printed circuit boards;
• two flexible printed circuit connectors, respectively mounted on the printed circuit boards;
• and
• a flexible printed circuit, having two contact portions respectively connected to the flexible printed circuit connectors, so as to electrically connect the flexible printed circuit connectors,
• wherein each of the flexible printed circuit connectors has a pin arrangement, and the pin arrangement comprises:
• a pin lane, comprising:
• a pair of ground pins;
• a pair of differential pins, located between the pair of ground pins;
• and
• at least one middle not-connected pin, located between the pair of differential pins.

A pin arrangement, adapted to a flexible printed circuit connector, the pin arrangement comprising:

• a pin lane, comprising:
• a pair of ground pins;
• a pair of differential pins, located between the pair of ground pins;
• and
• at least one not-connected pin, located between the pair of differential pins, or located between one of the pair of ground pins and one of the pair of differential pins adjacent thereto.