HDMI SWITCHES:
1. Goronya 3 Port HDMI Switch 3×1 Auto Switch with 1.4 Version Supports Full HD 4K 1080P 3D Player
(https://www.amazon.com/gp/product/B01ER793NQ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1)

GBAConsolizer User Manual
GBAConsolizer Installation Guides
GBAConsolizer kits’ parts Terminology
GBAConsolizer FAQ
GBAConsolizer Troubleshooting guide
GBAConsolizer known problem devices