Enclave Power Armor (Fallout 3)

The advanced power armor Mk II, also called black devil power armor or simply Enclave power armor, is a high-end model of power armor used exclusively by the Enclave's Department of the Army and developed after the Great War. It is composed entirely of lightweight composites rather than the usual combination of metal and composite plates found on the previous designation of advanced power armor, the MK I. In Fallout 4, the model number for the power armor variants developed by the Enclave is revealed to be X-01 power armor.

Its design is substantially different from another, earlier model of the MK II.

Characteristics
The set consists of two pieces, the body armor and helmet. Like all power armor, Power Armor Training is required to equip it. It provides +1 Strength and -1 Agility; one less Strength bonus and Agility penalty than the T-45d power armor. There is also a 5% increase to radiation resistance. Enclave power armor is also slightly more durable than standard T-45d power armor.

Dialogue from some of the Brotherhood of Steel scribes suggests that the Enclave's power armor is significantly more advanced than the Brotherhood's, with Brotherhood paladins expressing concern that their standard bullets may not even be able to penetrate it. They also refer to it as "black devil" power armor.