B2 super battle droid

"With these new battle droids we built for you, you'll have the finest army in the galaxy."

- Foreman Wat Tambor, to Count Dooku

B2 super battle droids were an advanced battle droid used by the Confederacy of Independent Systems during the Clone Wars. Super battle droids were much stronger than their predecessors, and they did not require a command system to operate, which gave the droids limited independence. Another improvement was their thick armor casing, which contained their fragile sensors. However, B2s were designed with simple processors, limiting their ability to formulate strategies. As a result, they relied on organic commanders or tactical droids in order to effectively operate. Some were equipped with a cannon arm that could fire homing rockets.

Having been developed before the onslaught of the Clone Wars, the first batch of B2s was put into operation on Geonosis, during the battle that started the conflict.

Behind the scenes
B2 super battle droids first appeared in Star Wars: Episode II Attack of the Clones. Originally, as seen in animatics for the film, the super battle droids were to dual wield E-5 blaster rifles instead of having a built-in wrist blaster.

Non-canon appearances

 * Star Wars: Galaxy of Heroes

Source

 * Ultimate Star Wars
 * Star Wars: Absolutely Everything You Need to Know
 * Star Wars Character Encyclopedia: Updated and Expanded
 * Star Wars: Complete Locations
 * Star Wars Propaganda: A History of Persuasive Art in the Galaxy
 * Star Wars: Galactic Atlas
 * Star Wars: Absolutely Everything You Need to Know, Updated and Expanded
 * Star Wars: Absolutely Everything You Need to Know, Updated and Expanded