Review on Selector Switcher Sharing Keyboard 3840X2160 by Jeremy Rodriguez

I use this to connect two Raspberry Pi computers to a keyboard mouse display station. Albeit not quite in a straight line. I'm going from a standard HDMI port on a Pi to a standard HDMI input on Box A?B. I also connect a USB port from the Pi to the corresponding USB port on the A/B switch. I leave the second Pi with a micro HDMI to standard HDMI adapter, from there to another port on the A/B switch. The USB from the second Pi is also connected to the corresponding USB port on the A/B box. The switch's HDMI output goes to an HDMI-to-VGA adapter, which sends the video to the display. The USB port on the A/B switch labeled "Keyboard" is connected to a Logitech wireless keyboard adapter and communicates with my Logitech wireless keyboard and mouse. This setup works easy to find and allows me to switch between 2 Pis without any issues. However, there is a slight delay of a second or two between the completion of the switch and the ad appearing. I don't know if this is a function of the A/B switch switching from one power source to the other (power via HDMI cable) or if it's a function of the HDMI cards when the PI wakes up. Spit. No problem for me. Very happy with this switch.