Multi-layer shielding, strong anti-interference capability The pure copper core is made of high-quality oxygen-free copper. Itis equipped with a double -layer aluminum foil shieldingand an inner membrane shielding for enhanced anti-interference performance. The outer layer is made ofenvironmentallyfriendly PVC material, which effectively improves the anti-interference ability and ensures more stable transmission! USB 3.0 extension cable High-quality copper core with multi layer shielding to reduce resistance and avoid interference, ensuring transmission speed Efficient Stable Anti-interference