Keenetic USB port voltage and amperage
In the actual Keenetic models (KN-xxxx) the voltage of the USB port has been raised to 5.20 V and the current on USB 2.0 is now the same as the USB 3.0 standard (i.e. 900 mA) plus smoothing capacitors are installed. The said power should be sufficient for most modern USB modems.
We design all Keenetic models so that with a current of 1 A, the voltage is at least 5 V. This is true for both USB 2.0 and USB 3.0 ports.
With no load, the voltage should be between 5.15 V and 5.20 V.
The current can also be greater than 1 A, but this may cause the voltage to drop below 5 V.