X-01 Armor is the strongest type of Power Armor in Fallout 4, and it's also one of the rarest. There aren't many unique pieces of X-01 Armor, but it's still incredibly tough because of its armor rating and the attachments you can craft for it.
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Luckily, you can find the X-01 Armor at lots of locations, so you can collect a suit for yourself and most of your human companions. Here's everything you need to know about finding X-01
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