Yes, the cable I bought is two pins. My graphics card comes with a pin, which is output from the motherboard sound card to the graphics card, and then the sound is output from the HDMI interface of the graphics card. This is a typical N-card HD solution, as long as your graphics card has the interface of these two pins, it is completely feasible.

For more information, please refer to the motherboard manual to find the SPDIF interface. The red line corresponds to the SPDIF output on the motherboard, and the white line corresponds to the GND signal pin. The corresponding part of the graphics card should be an anti-misoperation connector. If not, red corresponds to the graphics card SPDIF IN and white corresponds to GND.