Attero Device

Device used to destroy subspace in the Stargate Atlantis Season Five episodes "First Contact" and "The Lost Tribe", rendering Stargate travel and Wraith hyperspace transit useless. The Pegasus Asgard deployed this weapon against the Wraith, not caring that anyone who activated a Stargate would be destroyed in the process.
Technical Description:
Production made wood and, MDF and resin shell with frosted plexiglass windows and two large solid metal rods on each side. Features a opening compartment on front, held together with magnets with a space inside made of acrylic for faux crystals to be inserted. Painted silver and gold and measuring 103in x 38in x 38in.