All the wires are made of high quality oxygen-free copper, which guarantees the transmission speed of true USB3.0. Internal tin-plated copper shielding net + aluminum foil double-layer shielding, pure copper wire core, environmentally friendly PVC skin, soft and smooth body, high-grade and durable. The transmission speed is stable and the anti-interference ability is extremely strong. After the actual test, it is easy to get the wireless network card, 3G network card, camera, mobile hard disk. Features: 1. Environmentally friendly wire, connector, excellent electrical conductivity, high-speed transmission of data. 2. Data conductor twisted pair (impedance matching): Minimize data line signal crosstalk. 3. Provide ultra-fast data transfer rate up to 5Gbp/s. 4. Overmolded, not easy to break, durable, ensuring error-free data transmission. 5. Intimal Shielding: Helps reduce signal interference. Guarantees 100% compatibility with current USB specifications. 6. Braided copper mesh and aluminum-platinum double-layer shielding: can greatly reduce electromagnetic interference and radio interference. 7. Mainly used for: computer connected display, TV, projector, other devices with VGA interface to transmit data. Specification: Color: Black Material: Copper Package Size: about 20*18*3cm/7.87*7.09*1.18in Weight: about 250g/8.82oz Length: 1m, 2m, 3m, 5m, 0.3m(optional) Package List: 1 * Extension Cable 1、Environmentally friendly wire, connector, excellent electrical conductivity, high-speed transmission of data. 2、Data conductor twisted pair (impedance matching): Minimize data line signal crosstalk. 3、Provide ultra-fast data transfer rate up to 5Gbp/s. 4、Overmolded, not easy to break, durable, ensuring error-free data transmission. 5、Intimal Shielding: Helps reduce signal interference. Guarantees 100% compatibility with current USB specifications.