TRS-80 Model 1 Expansion Interface


General Information

The highly anticipated Expansion Interface for the TRS-80 Model 1


The Expansion Interface added room for two additional banks of 16k RAM, RS-232 Card, a Floppy Drive Controller, and the capability of adding two cassette drives to the TRS-80. 

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ERA: 1977
CPU: n/a
RAM: 0k - 32k
DRIVES: n/a 
AUDIO: n/a
I/O: 2 x Cassette Interface
1 x Floppy Interface
1 x RS-232 Port
1 x Expansion Bus Edge Connector
Keyboard n/a
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