VIC-20 HyperExpander SMD (37KB)

37KB RAM/ROM expansion cartridge for the Commodore VIC-20 with built-in software ROM.

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A RAM and ROM expansion cartridge for the Commodore VIC-20, adding up to 37KB of usable memory across the machine's expansion blocks (individually enabled) plus an optional 512KB flash ROM preloaded with popular period software and utilities — extending a memory-starved 1980s home computer well past its stock 5KB (3.5KB usable) RAM ceiling.

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