This item was intended for use in a recording studio but was never used and has been stored in a non-smoking studio. ▫️From the TOMOCA HP: All connectors are wired in parallel. Product Features: Uses reliable Neutrik connectors. Product Specifications: ● 4-Parallel Box ● 1 female jack, 3 male jacks ● Dimensions: 100(W) x 30(H) x 30(D) mm ● Weight: 145g https://www.tomoca.co.jp/brand/tomoca/tom_parabox/f-3m/