Commodore VIC20 - 16k ROM PCB
This cartridge provides 2 8K ROMs, each of which can be selected to be in block 1,2,3 or 5 (link selectable).
Supports 27C128/256/512, 28C256
If an EPROM larger than a 27C128 is used, multiple images can be selected using the ROM address jumpers
The default selection is the lower block in block 3, and the upper block in block 5, and uses the ROM image at the top of the ROM chip.
Fits classic and TFW8b.com VIC20 Cartridge Cases
If you need EPROMS you'll find them here