Tier 5 Pad
Tier 5 Pad is a legendary loot item.
Contains random loot from alta tier 5 pods.
Seems like these are similar contents to the special SSR pods scattered around Io - they are regular protected 
alta ship pods with unknown markings on them, often containing legendary items and equipment that can save an alta’s life.
Ingame
Species descriptions:
- Alta: It says “MECA” on the side, similar to
GSR pods. I wonder what this means.
Radiomessages on pickup:
- I detected an alta loot crate in your inventory. These minipods contain random loot from related chests and pods. Altas use them for fast compact transfer, thus everything inside is packed tightly. You won’t be able to put things back if you open it.
Sources
Found naturally in containers:
Can be obtained from special items:
Can be obtained via 
Spawnable Item Pack or 
Technical Information
- In-game ID:
ct_alta_loot_tier5 - Power:
4.0 - Rarity:
Legendary - Tags:
alta,citadel,legendary,loot - File:
/items/active/alta/loot/tier5.activeitem