Solved
Advance wireless receiver
Where can I purchase a new USB cable with an advance wireless receiver?
If for the 3810 or 3811 Roku Stick, Roku is sold out of them:
Roku USB Power Cable with Long-range Wi-Fi® Receiver (Models 3810 & 3811) | Roku
But if it's for 3821 or 3820 Roku 4K stick:
Roku USB Power Cable with Long-range Wi-Fi® Receiver | Roku
The second one will not work with older 3810/3811 Stick Plus.
