The SB12T11G from Whirlwind is a 12 input passive microphone splitter with one direct and one isolated output for each input, for a total of 24 outputs. Each input has a 3-pin XLR female connector and each output has a 3-pin XLR male connector. The SB12T11G is built from heavy cold-rolled steel to withstand the rigors of day-to-day use. This unit also includes ground lift switches on half of the outputs.
Whirlwind SB12T11G Specs
12 x XLR Female
24 x XLR Male (12 x Parallel, 12 x Transformer Isolated)