XA-540
this was a series of secretary droids produced by Opti-Prime during the early years of the New Order. These droids found widespread use in the Corporate Sector, and the XA-540 series was considered one of the most successful lines of business droids ever produced. They were promoted as "a unit capable of handling all your administrative needs quietly, competently, and with unswerving loyalty." It was rumored that Industrial Automaton tried to acquire several models of the XA-540 on the black market, in an effort to reverse-engineer their own kockoff version of the XA-540.