Here is a detailed look at upgrading a Tandy Radio Shack TRS-80 Color Computer 3 from 512K to a massive 2048K (2MB) memory configuration using the TRIAD+ 2048K SRAM upgrade board and the Pro-Tector+ MMU board. This video explores one of the more advanced hardware modifications available for the CoCo 3 while preserving and protecting the Hitachi 63B09E CPU and expanding the system far beyond its original factory memory configuration.
The TRIAD+ SRAM upgrade runs significantly cooler and more efficiently than many earlier memory expansions while the Pro-Tector+ MMU board helps protect critical CPU lines from damage caused by unstable cartridge or Multi-Pak connections. After completing the installation, the upgraded Color Computer 3 is demonstrated running Sierra On-Line's classic King's Quest, showcasing the continuing enthusiasm surrounding TRS-80 Color Computer hardware, upgrades, and retro computing preservation.