feature: Full-duplex data transmission, in USB3.1, in addition to the four main lines, two sets of cables are added (each set has a pair of lines and ground lines, and the periphery is shielded with aluminum foil, so that it does not interfere with each other) ,one. Groups are used to send data and groups are used to receive data. That is, USB3.1 can perform read and write operations synchronously at full speed. Previous USB versions did not support full-duplex data transfer. Double shielding (braided shielding and aluminum foil shielding) can greatly reduce electromagnetic interference and radio interference, and transmit data stably. Support USB 3.1 (10Gbps), USB 2.0 (480Mbps) and USB 1.1 (12Mbps) specifications. The unique aluminum alloy body and reinforced connector can withstand more than 10000 meters of mating test. Stable and durable, break-resistant, nylon braided cord. Specification: Material: Nylon Length: Approx. 50cm, 100cm, 150cm Net weight: 25-68g Package includes: 1x USB-C extension cable annotation: Please allow 1mm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.