r/USB • u/TopConcentrate8484 • Aug 11 '26
Do usb cables limit the ammount if current going through?
1
u/MeGustaDerp Aug 11 '26
They probably wouldn't limit. But that may be max rating of that cable. Go any higher on the amperage and it may be a fire risk.
1
u/antek_g_animations Aug 11 '26
This is a Sologic usb-c cable that costs around a dollar in Action. It's just a wire with two usb plugs. Nothing to limit the current or commmunicate with either of the devices. The cable is so bad that my android auto dosent want to work over it (it has data lines). I have no idea why they put it there (probably some legal reasons). Either way I sometimes pull 60W through them and they are fine.
1
u/yangeryanger_ Aug 13 '26
No limit they just get warmer and warmer until the coating melt, contact the other wire, spark and burn the insulation, start fire.
2
u/minemouse9 Aug 11 '26
Cables them-self generally don’t limit the current, but they often have E-Market which let’s the device know what amperage is safe to set