I got a Roku Streaming Stick 4K a year ago, and I'm still finding new quirks about it. Recently, I learned you can't just plug it into any HDMI port and expect sunshine and rainbows. Whether you're a new or seasoned Roku owner, you can avoid making the biggest TV mistake by choosing the right port for your streaming stick. Roku Streaming Stick 4K Operating System Roku OS Resolution 4K Ports HDMI 2.0b, USB for Power & Long-range Wi-Fi receiver Connectivity Wi-FiWhat is HDMI? Once your Roku stick and audio equipment are in the right port-homes, give it a whirl again.