TAKAAB S-MIX 
Switching Passive Mixer - Dual/Single Switched by Siam Modular

This passive module works as a 7 in 1 out mixer or as two smaller mixers. Any signals or voltages put into the inputs of the module will be mixed and output from the bottom out. When a jack is inserted into the middle out, this creates two separate mixers - So the top inputs are mixed and output from the middle out, while the lower inputs are mixed and output from the lower out.

As this is a passive module,it is not unity gain so expect a drop in level of all inputs as each extra signal is inputted. despite this, it is a useful module for mixing audio signals or summing control voltages where accuracy is not of importance.

1x "7 in 1 out" mixer 
-OR-
1x "3 in 1 out" mixer + 1x "4 in 1 out" mixer.

Size: 1cm (2HP) x 128.5cm x 1.8cm. Module depth: 1.4cm. Passive - no need for power

Package contents: 1x module, 2x M3 screws.