TI-99/4A FAQ: Sidecar expansions

Many Sidecar Expansions were made for the TI-99/4A:

TI Sidecars:

• Speech Synthesizer
  • 
• 32k Memory Expansion
  • 
• SS/SD Disk controller
  • 
  • 
• RS232
  • 
  • 
• PCode
• Video Controller
• Solid State Thermal Printer
  • 

Corcomp Sidecars:

• CC9900 Micro Expansion System
  • The 9900 Micro expansion from Corcomp provided 32k and also an optional board can be installed to provide a DSDD disk controller and RS232/PIO ports
  • 
  • 
  • Power Supply  5 pin DIN
• Corcomp Clock
  • 
• Corcomp 256/512k Ramdisk
  • 

Myarc Sidecars

 

Other Sidecars

• Boxcar Peripherals RS232
  • 
• Axiom ParallAx Printer Interface
  • 
• Triton Turbo XT
  • 
  • 

Homebrew Sidecars

• JediMatt42
  • 32k RAM Sidecar
    • 
    • https://jedimatt42.com/ti32kmem.html
  • TIPI Sidecar (ram card with 44pin required)
    • 
    • https://github.com/jedimatt42/tipi/
• Arcadeshopper
  • SAMS 1mb Sidecar
  • 
• Jgparker
  • 32k/TIPI combo card
    • 
    • fits in original speech synth case (after removing original board) also 3d printed cases are available
    • https://github.com/jgparker/tipi