Review on 🔀 JSAUX HDMI Switch Aluminum 4K 30Hz: Bi-Directional Splitter 2 in 1 Out with 2 Ports, UHD 1080P 3D Compatible - Grey by Troy Arnold

There's nothing wrong with this little switch. It does exactly what I need, which is to switch from my Roku Ultra to my TV or projector. I've seen someone here report that it doesn't work with Roku Ultra, but I'm here to say otherwise. Roku doesn't always work well with other hardware, and if you're having trouble with any of them, the first thing you should do is disable any automatic settings like screen resolution detection. If you search the web you will find people fixing all sorts of issues specific to Roku devices.