The ports resource crate is a rare additional drop granted by the passive effect of the superior Tetsu, Seasinger's, and Death Lotus armour. The passive effect requires any four parts of the same superior set to be worn (including augmented items, but not weapons). The effect has an approximate activation rate of 1/3,125.
When the effect activates, the following message appears in the chat box: You find a Ports Resource crate! The crate will appear in the player’s inventory.