N64 Controller Pak FRAM Mod Upgrade Service

Description

N64 Controller Pak FRAM Mod Upgrade Service. You must send me your controller pak and I will mod it with a f-ram chip so that saves will stay backed up without a battery. I will also back-up and restore  any game saves that are on the card. Great mod to make sure you don't lose your old save data as the batteries in these paks are starting to go bad.