Kang
Officer shards can be earned through the Premium Officer Chest, the Ultra Officer Chest, and the Crucible of War Officer Chest. Occasionally, more shards can be acquired through Rotational Ultra Chests. You can also exchange Transporter Patterns for extra shards.

Mara
Officer shards can be earned through the Premium Officer Chest, the Ultra Officer Chest, and the Crucible of War Officer Chest. Occasionally, more shards can be acquired through Rotational Ultra Chests. Additional shards can be earned through the Swarm Sunday event for players with Ops level 28+.

Krell
Officer shards can be earned through the Premium Officer Chest, the Ultra Officer Chest, and the Crucible of War Officer Chest. Occasionally, more shards can be acquired through Rotational Ultra Chests.

Kuron
Officer shards can be earned through the Ultra Officer Chest and the Crucible of War Officer Chest. Occasionally, more shards can be acquired through Rotational Ultra Chests. Additional shards can be earned through special events and the Offers tab.

Yan'agh
Officer shards can be earned through the Premium Officer Chest and the Crucible of War Officer Chest.

Qa'ug
Officer shards can be earned through the Premium Officer Chest.

Linkasa
Officer shards can be earned through the Premium Officer Chest.