X4

X4 was an OOM-series battle droid commander in service of the Confederacy of Independent Systems. However, due to the fact that X4 and the units under his command were not connected to the main control grid of the CIS droid units, being in a remote location, they were no deactivated following the Clone Wars. In 19 BBY, X4 and his faction joined forces with Admiral Zan Radek, a Kaleesh officer leading the Confederacy Reborn movement.