The invention relates to the technical field of transmission lines, in particular to a high-speed FFC (flexible flat cable), which comprises two flat cable bodies, a
printed circuit board is fixedly arranged at the adjacent ends of the two flat cable bodies, flat cable plugs are fixedly connected to the ends of the outer sides of the two flat cable bodies, and the flat cable plugs are fixedly connected to the flat cable bodies. The two flat cable plugs and the flat cable body are distributed in a
bilateral symmetry mode. In the invention, the
signal input unit is amplified twice through the first
amplifier and the second
amplifier, and finally, the
signal is transmitted to the flat cable body at the left side, when the
signal is transmitted in the flat cable body, the signal is not lost, the
energy consumption is reduced, the current is delayed through the
capacitor, and the situation that more current is always located in an alternating
resistor and cannot pass through the alternating
resistor is avoided. And the current can be stabilized, the current and
voltage output of the flat cable are stable,
energy supply operation can still be carried out when a single output line goes wrong, no influence is caused to equipment, and the use of the equipment is facilitated.