HDMI converters: https://amzn.to/3bKvYMs
USB cables to power the above: https://amzn.to/3ua18Dd

Managed Switch (for the matrix):  https://amzn.to/3fam2hy <- we recommend buying 2 to have 1 as a backup. We've never had one fail but it's a good idea!
Desktop Switch (for data out of the DisplayHUB appliance: https://amzn.to/3hKDafq

Optional but recommended…
Digital Signage: https://amzn.to/3430j4A <- only 1 is needed, this is broadcast via DisplayHUB Power backup: https://amzn.to/2QFs7sF
Power Distribution: https://amzn.to/3ua1JVt
Velcro to strap devices into place when they cant be mounted (like the boxes to the TV): https://amzn.to/34chbFX