USB wall outlets can charge devices faster than traditional USB ports on a computer or a standard wall adapter, provided they have higher amperage ratings. USB wall outlets are designed to deliver more power to devices, and the higher the amperage rating, the faster the device can charge.
For example, a typical USB 2.0 port on a computer can provide up to 500 milliamps (mA) of power, while a USB wall outlet with an amperage rating of 2.4 amps (2400 mA) can charge devices up to 4 times faster. Similarly, a USB wall outlet with an amperage rating of 3 amps (3000 mA) can charge devices even faster.
It's worth noting that the charging speed also depends on the device being charged. Some devices, like smartphones and tablets, are designed to accept higher amperage charging and can charge faster with a USB wall outlet. However, other devices may have built-in charging limits that prevent them from charging any faster, even with a higher amperage USB wall outlet.