Pack Extender

The Pack Extender (拡張パック④) is a support panel in Kingdom Hearts 358/2 Days. It increases the amount of items you can hold on the field with each Backpack linked to it. Each linked Backpack lets you hold four more items and a fully occupied Pack Extender can let you hold up to twelve more items. There is only one Pack Extender in the game, along with three backpacks to link with it.