Two is better than one.

The Retro Rewind Dual Diag cart provides you with a double headed Commodore 64 cartridge for all your diagnostic needs.

With our cartridge you get:

  • 586220++ Diagnostics - Updated with proper Kernal and SX-64 detection.
  • 781220 Dead Test - The ultimate tool to diagnose your dead C64.

This cart is a perfect replacement for both the single C64 Diag and Dead Test cartridges.

Compatible with the Commodore 64, 64C, SX-64 and C128 (in 64 mode only).

Why not pair it up with our Full Test Harness?

Support and manuals can be found on our Support Wiki.

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C64 Dual Diag

  • Brand: Retro Rewind
  • Product Code: RR-Dual-Diag
  • Availability: In Stock
  • $38.00


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