Crystalline Electronic Unit
The Crystalline Electronic Unit is an upgrade material in Arknights, introduced alongside Episode 08.
A crystallization of Terra's Originium technology. A symbol of Terra's industrial modernization. From Originium Casting units to intercity network servers, their making all starts with inventions like these.
Usage
The third of the Crystalline-type upgrade materials, Crystalline Electronic Units are an electronic control unit that integrates a Crystalline Circuit and used as one of the major components of advanced Originium-based electronic devices in Terra, from high-performance Arts catalysts to mainframes and supercomputers. Crystalline Electronic Units are required for the skill Mastery training and Elite 2 promotion of certain Operators introduced from Episode 08 onwards.
Acquisition
Workshop
| Product | Material(s) | LMD | Morale | Requires |
|---|---|---|---|---|
 1 |
 1  2  1 |
400 | 8 | Level 3 Workshop Clear S5-9 |
Trivia
- Before the Who is Real update in the Global server, the material is named Crystalline Electroassembly.
- The Crystalline Electronic Unit is currently considered the hardest material to acquire by the Arknights community because:
- It is the only T5 upgrade material that are part of an upgrade material type (Crystalline).
- Along with
Bipolar Nanoflake, the Crystalline Electronic Unit is the only T5 upgrade material that requires two of a particular T4 material (in this case, two 
Polymerized Gel) to produce one.
See also
- Crystalline Component – T3 counterpart
- Crystalline Circuit – T4 counterpart