Discovering Vault Key Fragments in Borderlands 4 unlocks access to Kairos vaults, where valuable loot awaits adventurers. Three primary zones – Carcadia Burn, Terminus Range, and Fadefields – each conceal secure storage chambers requiring specialized components for entry.

Below are detailed guides for locating essential vault access components across diverse environments:

Essential Kairos Vault Component Locations

Windspear

Search atop cargo containers within the main structure facing Windspear’s entry point to uncover this fragment.

The Low Leys

Ascend rocky formations near deteriorating vegetation along northern pathways to find this component on an elevated outcrop.

Cuspid Climb

Navigate to elevated caverns along sheer cliffs, where strategic positioning reveals the fragment between deceased explorers.

Idolator’s Noose

Inspect metallic grates near sealed circular passages within this area’s subterranean network for hidden compartments.

The Howl

Investigate bioluminescent mineral deposits within cavern systems to locate this luminous fragment.

Coastal Bonescape

Search storage containers amidst glass debris along shoreline structures to discover this maritime fragment.

Lopside

Ascend to elevated refueling station rooftops, where dining surfaces conceal this fragment.

Tonnage Peel

Explore sub-surface chambers beneath southern wreckage sites, accessible through floor ventilation systems.

Ruined Sumplands

Coastal plinths near aquatic edges hold this fragment on weathered stone platforms.