Plasma beam weapons are a newly developed technology created by the Asgard shortly before their extinction and gifted to the Tau'ri as part of their legacy. They appear far superior to the older Asgard weapons. Instead of firing pulses of energy like most beam weapons, Asgard plasma beam weapons release a narrow, high-intensity beam of superheated plasma. Just one of these beams is capable of overloading and penetrating even the most advanced shields and burning through the hulls and internal structures of an enemy vessel with comparative ease, causing heavy damage; if the beam hits a critical area the target can be destroyed in only two to three shots. They were used by the Alliance of Nations

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