I need to replace the power cord. How can I get one? I'm getting an error message many times telling me there's insufficient power and I might have a short with the cable itself
Thanks for the inquiry.
If you need a replacement power cord for your Roku Premiere (3920), you will need the Roku Micro USB Power adaptor — PW03 found on our Products page here: Player Accessories
need to replace power cord for 3910x according to the roku model #
You want the first one listed the PW10 on this page, scroll down past the remotes: