Welcome to the Intellivision Revolution!

The LTO FLASH by Left Turn Only


Enough capacity to hold the entire Intellivision game library several times over!

Load up your LTO Flash! with all your games, and carry them all with you on just one cart!

Ordering information at the Left Turn Only website:



  • Compatible with all Intellivision Master Components
  • Compatible with ECS and Intellivoice peripherals
  • Compatible with NTSC, PAL, and SECAM systems
  • Compatible with all the original games and prototypes, and every homebrew we've tried
  • Full speed USB 2.0
    • 2Mbps peak transfer rate
    • Serial connection available to new Intellivision programs
  • 32MB flash storage built in!
    • Corruption-resistant journaled filesystem
    • Minimum 2,000,000 Erase/Write cycles
    • 20 year data retention, typical
    • Maximum 1MB file size
    • Maximum 128 folders, 1536 files, and 3072 forks
    • No SD card necessary. All the storage for all the games is built in!
  • 1MB RAM (512K x 16-bits)
    • Emulates RAM, ROM, and WOM
    • Supports ROMs up to 512K words (1024K bytes)
    • Supports all known Intellivision banking/page-switching modes
  • Transparent Intellivision II compatibility fixes
    • Most 3rd party ROMs play on Intellivision II consoles without modification
    • Can be disabled manually to allow testing new homebrews in development for maximum console compatibility.
  • Transparent ECS compatibility fixes
    • Play nearly all your games while leaving the ECS attached!
    • Bypass the ECS title screen automatically
    • Enable the ECS to use ECS BASIC or to test new homebrews in development for maximum hardware compatibility
  • JLP Accelerator support for new game programs
    • Multiply / divide accelerator
    • CRC-16 generation
    • Random number generation
  • JLP Flash Save Game support
    • Up to 1MB save area per game
  • Field upgradeable via firmware updates


Downloads and Documentation