Description:Using double shielding (braided shielding and aluminum foil shielding), this USB extension cable can greatly reduce electromagnetic interference and radio interference for stable data transmission.With a data transfer rate of up to 5Gbp/s, this USB extension cable helps back up your 1G files in 3 seconds.It is made of all copper core, aluminum foil and braided wire. USB3.0 is also considered as super speed USB, which greatly improves the bandwidth, up to 5Gbps full duplex or 625MB/S, but the actual transfer rate is about 3.2Gbps, or 400MB/S.The length of this product is 1m and 2m.It is suitable for data transfer and connection extension between devices with USB interface. In addition to the 4 main lines, two sets of cables are added (each set has a pair of signal lines and ground lines, and the periphery is shielded with aluminum foil, which does not interfere with each other), one set is used to send data, and the other set is used to receive data, that is to say, USB3.0 can perform read and write operations at full speed synchronously. And it supports for Windows 2000/2003/XP/for Vista/for WIN 7SP1 and for Linux, for iOS.Item Name: USB Extension CableMaterial: All Copper Core, Aluminum Foil, Braided WireInterface: USB 3.0Transmission Speed: 5GbpsScope of Application: Data Transmission and Connection Extension Between Devices with USB InterfaceSupported Systems: for Windows 2000/2003/XP/for Vista/for WIN 7SP1 and for Linux, for iOSFeatures: Dual Shielding, Plug and Play, Stable SignalSize Details:Length: 100cm/39.37"(Approx.)Length: 200cm/78.74"(Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x USB Extension Cable