1541 Floppy Disk Drive Diagnostic Test Cartridge with the famous "World of Jani" Test Tool.

Our unit is compatible with the C64, C64C, SX64 and C128(D) (in C64 Mode).

Circuit Board Color is Black with a Green and Red LED indicating Power. Other colors like Blue are available in our other auctions/Shop. 

Ready Build and tested here in the USA.

By buying this item you are supporting an American small business!