Tag: rom cartridge

Combines configurable VIC-20 RAM, a large built-in software library, diagnostics, fast loading, and optional SD2IEC storage.

TFW8B listed the PenUltimate+3dcr as shipping on 2026-07-29. The older PenUltimate+, +2, and microSD-based +3 are end-of-life variants. Product-page option text mixes retired and current generations, so confirm that an order is for the +3dcr and whether any optional media are included.

Adds banked programmable flash and configurable RAM for storing and launching VIC-20 software.

The official project page preserves GPL-licensed menu and programming software plus detailed operation notes, but its RETRO Innovations product link is no longer a verified order path and no complete open hardware fabrication package was confirmed. Search for a used cartridge or choose a current UltiMem-compatible device such as VIC-MIDI.

Provides switch-selectable VIC-20 memory layouts with current assembled 35 KB and 37 KB cartridges plus an open 32 KB design.

Jaystonian showed eight HyperExpander SMD cartridges in stock at USD 29.99 on 2026-07-29. Retro Lemon exposed a GBP 20 product page without an out-of-stock marker. The open 32 KB project remains buildable. The guide's old fixed 24 KB eBay listing is retained only as an archive because its current order path was not verified.