Jeti Central Box 400 + 2 x RSAT2 + RC Switch DUPLEX 2.4EX J-CB-400-RS-RCSWJeti Central Box 400 + 2 x Rsat2 & RC Switch DUPLEX 2. 4EX J CB 400 RS RCSW The Central Box 400 is a switchboard designed for the complete management of servos in large to giant models with an emphasis on safety. The Central Box 400 has a unique design that provides overload protection at each servo output. An independent, very powerful BEC (battery eliminator circuit) for each battery input makes the Central Box an optimal solution to connect up to