If you’re looking to optimize your Ancestor Mods in The First Descendant, you’ve likely realized that 
Superconductive Cooling Units are the bottleneck.
Superconductive Cooling Units are a specialized endgame currency used exclusively for rerolling Ancestor Mod perks. Because you have to reroll many of them, you will need a large number of these cooling units.
How To Farm Superconductive Cooling Units in TFD
Here are three popular methods. I do recommend Axion Plains Operational Area, this is the most consistent method of farming Superconductive Cooling Units. Most likely, you are running Sigma Sector anyway to increase Arche Tuning, so the extra units are a freebie.
Lastly, Breach Tracking can yield the largest amount, but you need 
Dimensional Stabilization Keys to open the box at the end. When I farm Gold in Breach Tracking, and I have enough keys, I also open the blue box that drops the Superconductive Cooling Units!
| Method | Amount | Avg. Clear Time | Best For |
|---|---|---|---|
| Axion Plains Operational Area | 11 Units | 1:30 – 2:00min | Most consistent clears |
| Breach Tracking (Blue Box) | 40 – 500* Units | 4:00-5:00min | Highest potential but requires keys & RNG |
| Sigma Sector (Hard) | 6 Units | 2:00-4:00min | Easiest clear |
*Dimensional Stabilization Keys are required to open the boxes at the end and have RNG tied to it, 500x drop only at 2.5% chance.
1. Axion Plains 
Operational Area Missions Farming
Currently, farming any of the 
Operational Area missions in the Axion Plains is a great way to get a high amount of Superconductive Cooling Units.
Important: Mission must be under Operational Area status. Otherwise, no Superconductive Cooling Units drop.
- Check Schedule: Axion Operational Area Rotation Schedule if you have a preferred mission.
- Yield: 11 Superconductive Cooling Units per completion.
- Estimated Clear Time: 1.5 minutes – 2.5 minutes (with a fast mobbing build).
Some missions are faster than others. Here is a quick estimated clear time list:
| Mission Name | Clear Time |
|---|---|
| AX Power Converter |
1:30 – 2:00min |
| First Crater |
2:30 – 3:00min |
| Technical Research Institute |
2:45 – 3:30min |
| AX Refinery |
3:00 – 4:00min |
| Sealed Resident District |
4:00 – 5:00min |
| Emergency Deployment Zone |
5:00min+ |
| Decontamination |
5:00min+ |
| Liquefied AX Vault |
5:00min+ |
Important: Mission must be under Operational Area status. Otherwise, no Superconductive Cooling Units drop.
2. Breach Tracking
Breach Tracking can give you a huge amount of Superconductive Cooling Units from the box at the end. But you need Dimensional Stabilization Keys to open the box.
I recommend this if you are already farming gold in Breach Tracking and you have spare keys to open the box. So you can open a Gold and Cooling Units box.
Superconductive Cooling Units Box Drop Chances:
- 40x – 67.5%
- 80x – 22.5%
- 100x – 7.5%
- 500x – 2.5%
3. Sigma Sector
If the Axion rotation isn’t favorable, Sigma Sector is an alternative option. It is shorter and more predictable, making it ideal for solo players who want a “braindead” grind.
- Location: Sigma Sector (Hard Mode).
- Yield: 6 Superconductive Cooling Units per completion.
- Estimated Clear Time: Under 2 minutes.
Related Content
You can also check out our Ultimate Weapons Database for The First Descendant or the Builds Database for The First Descendant.
