For connecting a PCnotebook to a USB (Universal Serial Bus) terminal device (eg to a smartphone tablet PC external hard drive smartwatch Bluetooth speaker) Additional shielding for good reduction of electromagnetic interference The inner conductor is made from copper which ensures best transmission properties Sturdy plugs & moulded strain reliefs high mechanical resistance Suitable & tested for USB (Universal Serial Bus) 20 downward compatible with USB (Universal Serial Bus) 11 Twisted data lines (twisted pairs) Ideal for charging data transfer & synchronization