►2U rackmount. ►Signal input/output interface×2, Neutrik four-core socket×2, the Wiper S28- ZV seven-pin socket×2, the single-phase 220V/16A universal power output socket×5 are configured. Equipped with three phases 380V/32A waterproof power input(1 meters power cable)/output socket,provides power for adjacent cabinets. ►1 air switch for each phase input power supply. ►Designed for 3 way touring sound reinforcement systems.