GameCube
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Viper GC USB Adapter
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gc-vipergcusbadapter
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This is the Viper GC USB adapter only. It is fully compatible with Viper GC (regular) and Viper GC Extreme.

If you own a Viper GC chip and would like to program it though a USB port, this is the perfect add-on!

 

GC Screwbit
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gc-screwbit
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Because Nintendo GameCube uses security screws, you need the Screwbit. It opens any GameCube, N64, SNES, PCE or TG16 system.

This is the Screwbit only, you attach it to a long-barrelled socket screwdriver.