System 80 X-4010 Expansion System

[ChickenMan]

No rom needed, the System 80 ROMs check to see if an Expansion box is connected and if a disk is in the drive, it will boot it. Its recommended you turn on the monitor first, then disk drives, then Expansion box and finally the System 80. If I do that on my System 80, I get a screen full of garbage, so I turn on the System 80 (which turns on my Gotek also) before the Expansion box. Hit reset and it boots whatever the Gotek is set at.