Armor Expander Box

The Armor Expander Box opens to a slot-expander that adds extra enchant slots to a piece of armour.

Apply the expander to an armour piece to unlock room for more enchants: it usually grants +1 slot, with a chance to roll +2 slots instead. More slots means more armour combat enchants or mining enchants on armour stacked onto a single piece of gear.

Where to get it: an uncommon find in the Fund III, Fund IV, and Fund V lootboxes from the Community Fund, in the Season 1 Crate jackpot, and from the Erebus pit guards.