The C256U includes all of the standard features, plus the following:
- 2MB of Video RAM
- 2MB (U) or 4MB (U+) of System RAM
- 3-wire RS232 port
- Programmable RGB enclosure lighting :).
The C256 U/U+ further support either the ESID (2x SID + ethernet) or EVID (2x SID + 2nd video) expansion cards.
Documents
Hardware Setup
Ports and Connectors
