Can you use any kind of micro USB cable cord for Roku devices or does it have to be the one that specifically comes with them?? I have to replace my power cord for mine but when I link my device on the website it tells me there are no compatible accessories for my device. I have the Roku stick model 3820. I think it's the 4k but I'm not 100% sure.
For most, any cable will do, but for a 3820, you need one of these:
With Streaming Stick model 3810, released in 2017, Roku enhanced the WiFi receiver and moved it from the interior of the stick out into a bulge in the USB power cord. For this and later Streaming Stick models, a specialized power cord with a "Long Range Wi-Fi Receiver" must be used. Without it, the stick cannot connect to the internet, nor can it communicate with its remote.
There are two different power cords with Long Range W-Fi Receiver available, depending on your Streaming Stick model. The two are NOT interchangeable.