PortaPow Specialised Data Block + Charge USB-C to USB Cable 3-Pack Extra value 3 pack includes 2x 100cm and 1x 30cm cables. Charge-only cable prevents your device going into data transfer mode when connected to a computer or any other USB socket to prevent data theft / viruses when charging from an unknown USB socket. 20 AWG thick low resistance copper cable. Includes 56k Ohm pullup resistor to comply with official USB-C spec. Using this cable with Samsung phones will result in slow charging. Not compatible with Qualcomm Quick Charge or similar 'fast charge' standards. 1 year guarantee.