5 products

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Not enough ports? Make two ports out of one using this!

Starting from $19.99

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Insert this small module into one of the cartridge slots to easily add a power led and reset button to your system.


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This cartridge PCB lets you use MMC/SD cards as a removable storage medium for your PCjr and can even replace a hard drive!

Starting from $35.99

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Update your SD-Cart JR with this new boot ROM which supports the use of other hard drives on the system, such as a jr-IDE.


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PCB for making your own IBM PCjr computer cartridge.


(Volume pricing available)