The optimized servos is a power armor leg mod in Fallout 4.


When installed on power armor, the optimized servos reduce the AP cost when sprinting. The ability to run while overencumbured obtained through the Strong Back perk counts as sprinting, and the AP cost is mitigated by this mod.


In order to craft the optimized servos, a power armor frame with the desired leg piece(s) attached must be present at a power armor station.

Adhesive (See table)
Aluminum (see table)
Fiberglass (see table)
Spring (see table)
Science! Rank 3
Optimized servos (1)
Armor type Adhesive Aluminum Fiberglass Spring
Raider 3 3 5 3
T-45 4 4 6 4
T-51 4 4 8 4
T-60 5 5 9 5
X-01 6 6 10 6


The optimized servos are only available via crafting at a power armor station, with the exception of the T-51 variant which can be purchased at the Atom Cats garage.

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