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When a cartridge is inserted into the Colecovision game console there is a 12 second delay before the game can be selected. The Dual BIOS kit contains a modified No Delay BIOS which gets rid of the delay. For the few games that aren't compatible, just flip the switch and use the standard factory BIOS!
Kit comes with everything needed except tools:
28 pin socket
Kynar wire for 2 jumpers
Wires to connect the switch
Instructions for the kit are available on our downloads page
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