The reference USB cable balances quality and listening experience through a reasonable combination of conductors, shock absorbers, and other aspects, resulting in a high degree of sound completion. Adopting a signal electric separation design, the signal part conductor is high-purity silver conductor; The conductor of the power supply part is silver plated copper silver alloy. The combination of bulky materials and traditional shock-absorbing materials has found a balance between physical properties and sound performance for the wire body. The reference USB cable has excellent sound quality, delicate structure, excellent frame and sound field, and is a reliable link for digital signal transmission.