This augmentation upgrade increases the amount of inventory space you can managage,adding several more squares of inventory to Jensen's pack. For the weapons, their base stats, how much spare parts are needed to upgrade them and how strong are the upgrade bonuses.
With this upgrade, Adam Jensen can use his augmented strength to lift and throw heavy objects like vending machines, turrets, and large heavy boxes to attack enemies, create cover, and more.
This automatically unlocked augmentation allows Jensen to rapidy fight enemies in close proximity - and can either incapacitate (tap the button) or kill (hold the button) using his augmented arms. Hold while highlighting a weapon in your inventory to bring up the upgrade screen, max out any specs available for upgrade and equip the attachments that are. This augmentation allows Jensen to interact with weak walls (either seen by cracks or using Smart Vision) and breaking them down - instantlly taking out anyone unfortunate to be on the other side.