The Colecovision Ultimate SD cartridge is an SD card based multi-cart for your Colecovision game system.
The Ultimate SD is the most advanced cartridge ever produced for the Colecovision and includes a 50 MIPS onboard CPU, advanced upgradable hardware logic, 512KB of SRAM and 128KB of block flash.The Ultimate SD Cartridge supports the following Colecovision ROM formats:

• All standard 32K or less ROM images.


• MEGA-CART Bank-switched ROM images up to 512KB (Mario Bros, Pac-Man Collection, etc)


• Lord of the Dungeon (Including NVRAM with automatic save to SD card!)


• New modes including the Hybrid 512KB full Read/Write 8k/8k Bank-switching mode

The bank switching logic, CPU firmware, boot flash and menu software are all 100% field upgradable by just placing new files on the SD card and turning on the system!
To read more about the capabilities of the cartridge and the menu software, please check out the documentation below the ordering page and visit the discussion forums also linked below.

(For purchasing information - Click here)   -  (Firmware support - Click here)

The BackBit Pro Cartridge is an SD card based multi-cart for your Colecovision game system. NOTE: This cart requires the purchase of the Colecovision/Adam adapter (Sold separately)

• All standard 32K or less ROM images.


• MEGA-CART Bank-switched ROM images up to 512KB (Mario Bros, Pac-Man Collection, etc)

(For purchasing information - Click here)

The PiCOLECO, the Pico-based ColecoVision multicart:

What it is

PiCOLECO is a DIY flash multicart for the ColecoVision created by Andrea Ottaviani (aotta). It's built around a cheap "purple" Raspberry Pi Pico clone — and importantly, the purple clone has a different pinout than the official green Raspberry Pi Pico, so you MUST use the clone or you risk damaging your hardware. GitHub

How it works

After flashing the .uf2 firmware to the Pico (by holding the button while connecting it to a PC and drag-and-dropping the file), you can swap your ROM library at any time by connecting the cart to a PC and dragging .BIN files onto it like a USB drive. The PCB itself only requires a diode and a reset push button beyond the Pico clone. GitHub

The author credits Robin Edwards' A8PicoCart project as the inspiration for the flash RAM management and USB update approach. GitHub

Capabilities and limits

• Works for ROMs up to 32K. There isn't enough RAM on the Pico to handle 128K or larger multi-bank ROMs. GitHub


• Uses a simple FAT filesystem — filenames (including the suffix) must be 32 characters or fewer, or the games won't start at all. GitHub


• Most original release games work fine and some homebrews work, but compatibility isn't guaranteed across the entire library. Oghugo

Please note that all legacy ROMs within the archive are from the CV ROM Update project!