MixPack 4 provides individual stereo mixes and multi-track recording for five musicians. It includes 4 myMix, 1 TPE-S80 switch and has 8 channels. Four myMix units provide eight inputs to connect and label microphone (phantom power available) and line level sources. All devices get connected with a CAT5 cable to the TPE-S80 POE switch. The TPE-S80 provides power for 8 myMix units, so you can add 4 more or 3 and an IEX16 input expander to the system.