As advertised, the cable Provides high current with very low voltage drop, and almost Allows charging of BC 1.2 devices (LG G3), with a non-compliant charger It therefore Provides Data Security, as no data is Transferred
As a negative, the voltage drop is higher than expected from 20AWG cable, I have a 24 AWG cable That has even less voltage drop - but the difference is small. Probably the 0.3m version will be even better!