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Fallout 76is a world sprawling with life and adventure. There is a lot that you are able to do as you journey through the wastelands and complete missions to rank up your character in the open-world multiplayer RPG.
As you spend more time in the world, you will start crafting items and ingredients to help you delve deeper into the more dangerous territories. Some items, such as fiber optics, are very valuable and can be especially difficult to find. Fibre optics are used for high-tech weapons and mods, usually of the laser weapon variety.
Updated July 20, 2025, by Andrew Scariati:FollowingFallout 76’s massive resurgence in popularity, there’s never been a better time to farm fiber optics in Fallout 76. We’ve added a few more locations to search as you farm fiber optics in Appalachia.
What Are Fiber Optics?
Fallout 76’s fiber optics are a rare crafting component found by breaking down certain high-tech items down into scrap.
To quickly break down your items into fiber optics, head to a Workbench and select the option to scrap all your junk.
These items will produce fiber optics when scrapped, so keep an eye out for them:
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Where To Find Fiber Optics
There aretwo main waysthat you can obtain Fallout 76’s rare fiber optics.
The first is by scrapping items like microscopes,yielding a small amount of the material every time.
The other way is through killing specific enemies,and for this material, the best-yielding enemy to kill is theFog Crawler.
The most consistent place to find Fog Crawler is at theDabney Homestead.
Thisworkshop is located far eastof the map, close toBlake’s Offeringand theValley Galeria.
You will knowif the enemies have spawnedas it will come up as a mission when you approach the workshop telling you toCLEAR OUT ENEMIES.
This will havethree Fog Crawlersfor you to kill, and on their bodies will be a varying number of fiber optic bundles.
These enemies are usually high-leveled andmay be a challengefor you to defeat at low levels.
If you are too under-leveled to kill these creatures, you can always go for the slightly less efficient technique of finding items to scrap.
A good place to go hunting for fiber optics in Fallout 76 is theAVR Medical Center, locatedsouth of the map.
While here,find as many microscopes as possible, as these can be scrapped to give fiber optics.
You will need to head inside the building,giving you a loading screen.
This can be annoying as you will have to go through this loading screen every time you want to complete the route, but the value inside is worth it.
Head inside all the rooms, and there will be amicroscope on most desksfor you to pick up and then scrap.
In total, you can usually findseven microscopesonce you’ve finished searching.
The yield on microscopes for fiber optic bundles is, on average, lower than what you would get for killing just three Fog Crawlers, but it is an alternative if you don’t feel ready to take on the creatures.
If you aren’t having luck at the AVR Medical Center, you may hunt for microscopes atWest Tek research center or Morgantown Airport.
You can findfive microscopes at West Tekby fighting through the labs and defeating thehorde of FEV-fueled Super Mutants.
There areanother three microscopesin the medical hangerin Morgantown Airport.
The last one can be found between theFreak Show and the monorail elevator.Search around for the remains of a scientist, where you should find a Biometric Scanner.
