Here you can download very rare trs 80 expansion interface manual by radio shack.
Informations:
File name: veryraretrs80expansioninterfacemanualbyradioshack.rar
Driver version: 2.2.9
File size: 2 466 KB
This driver works with Windows and it's safe for the user.
VERY RARE TRS 80 Expansion Interface Manual by Radio Shack