FiiO LINK-TC4 USB-B to C Digital Audio Cable The FiiO LINK-TC4 is a premium USB-B to C digital audio cable designed for clean, reliable connection between compatible USB audio devices, including DACs, players, headphone amplifiers, computers and portable sources. The LINK series is FiiO’s upgraded cable range, created for listeners who want a more refined cable than a basic everyday option. The name “LINK” represents the connection between audio components, and the deeper connection between music and the listener. Compared with FiiO’s entry-level TRUST series, LINK cables are designed as a more advanced choice, using higher-grade materials, stronger shielding and a more premium finish. Inside, the LINK-TC4 uses high-purity silver-plated monocrystalline copper conductors, paired with dual-layer shielding made from graphene-coated aluminium foil and tinned copper. This helps support stable signal transfer while keeping the cable flexible and practical for everyday audio use. The plug housings are CNC-machined from anodised aluminium alloy for improved wear and corrosion resistance, with FiiO’s signature Arc design making the cable easier to grip, plug in and remove. The cable also uses a flame-retardant PVC sheath, glossy polyester FDY braided outer layer and reinforced core wire with 500D high-strength nylon filament for improved pull and swing resistance. Finished with a subtle multi-colour braided design in gold, silver and green, the FiiO LINK-TC4 offers a tidy, durable and premium-feeling cable for portable or desktop audio setups.
