Roku devices have USB ports that can be used for various purposes:
- To access external media like USB drives
- Power external USB devices
The USB port cannot be used to support a Bluetooth or Wi-Fi dongle.
A standard USB port is capable of supplying 5 Volt and 500 mA (milliAmps) of current. This limits what the USB port can be used for.
Over the years, Roku has been increasing the amount of current it is able to provide for external hard drives and storage media.
The table below specifies how much current a Roku Device’s USB port can provide
|Roku Ultra||1170 mA|
|Roku 4||900 mA|
|Roku 3||650 mA|
|Roku 2 XS||650 mA|
|Roku 4K TV||1100 mA|
|Roku TV||720 mA|