The Commodore 128 ROMs for the U36 socket offer a fast, solder-free upgrade for one of Commodore’s most versatile machines. Shareware Plus now stocks a range of ready-to-install ROMs that simply plug into the empty U36 socket inside your Commodore 128 or 128D. These ROMs are designed to expand the system’s capabilities—from diagnostics to productivity tools—all without modifying your hardware.
Commodore 128 ROMs include both single-purpose and switchable options. Need to test your system or 1571 disk drive? Pick up the 588121 or 789010 Diagnostic ROMs. Want a quick-access file manager? File Browser v6 is available solo or paired with utilities like Servant 128, BASIC 8, or even Turbo Assembler 128. Each ROM boots directly on startup and can be swapped with a toggle if you go for the dual-ROM configuration.
These ROMs also extend support beyond the C128 itself. If you’ve got a 1750 or 1764 RAM Expansion Unit with a square REC chip and an empty 28-pin socket, you’re in luck—installation is just as simple.
Switchable ROMs bring even more value. With combinations like GEOS 1571 & 1581 versions on one chip, or a utility pairing like Servant 128 with File Browser, you can squeeze maximum function into minimal space. Just flip the switch to change modes. Installation requires no soldering, and everything ships boxed with instructions.
Prices are straightforward: £8 for standard ROMs, £12 for switchable ones. GEOS ROMs will need a boot disk, but everything else works out of the box. To order, just contact Shareware Plus at: [email protected]
