This pre-owned Behringer Mixer module is in excellent condition. It includes two four-port multiples and four outputs - two positive and two negative.
from Behringer's site: "The CP3A-M Module features 4 3.5 mm input channels each with its own input knob to allow users to adjust the volume of incoming signals. The module also comes with two pairs of outputs, one positive and one negative plus a passive Master Gain knob for overall control of the CP3A-M’s output volume. The transistor circuitry adds character to your mix"
full product page from Behringer site: https://www.behringer.com/product.html?modelCode=P0E1R