Tag: reu

Upgrades an original Commodore 1764 REU from 256 KB to 512 KB and supplies parts that can also repair or expand other 17xx REUs.

The current Shopify product page exposed a priced checkout product on 2026-07-29. This is a component kit for an original REU, not a complete memory cartridge. The page does not provide a complete board-revision-specific installation procedure; use appropriate Commodore service information, ESD precautions, and an experienced installer.

Uses a Raspberry Pi cartridge to emulate up to 16 MB of REU memory or up to 4 MB of GeoRAM-compatible memory on a C64 or C128.

Retrobit listed five assembled cartridge boards with cases at PLN 93.50 on 2026-07-27. A Raspberry Pi Zero 2 W and microSD card are not included. The upstream project describes RAD as a playground for new features and documents machine-dependent timing and power limitations.

Adds a switch-selectable 256 KB to 16 MB DMA RAM Expansion Unit compatible with Commodore 1700, 1750, and 1764 software.

RETRO Innovations exposed an Add to Cart path at $75 on 2026-07-27. A dated 2026-04-29 notice on the product page says red enclosures were temporarily unavailable and orders could take two to three weeks to ship, so confirm the current enclosure and fulfillment state when ordering.

Combines ROM and program loading, MIDI, Ethernet, NFC launching, remote control, a real-time clock, and REU functions in a Teensy 4.1 cartridge.

The maker's Lectronz store showed six fully assembled revision 0.4 units at USD 64.00 on 2026-07-27. The programmed Teensy 4.1 and case are included. A CR1225 battery is included only with United States shipments, and an SD card or USB drive is needed for content beyond the built-in files.

Combines a C64 accelerator, VGA output, REU and GeoRAM memory, SD storage, dual 1541 emulation, input adapters, and cartridge emulation in one FPGA cartridge.

Individual Computers listed Turbo Chameleon V2 out of stock at EUR 235.44 on 2026-07-27. The official firmware remains in beta, with current releases and known bugs maintained in the product wiki. A CR1220 battery, networking card, docking station, cables, power supply, keyboard, and monitor are not included unless separately stated.