MST Stereo Output Mixer DIY Kit by Synthrotek - Eurorack Module Modular Kit

MST 4-Channel Audio / CV Mixer DIY Kit Eurorack Module by Synthrotek

MST Expressor PCB Combo by Synthrotek Eurorack Modular Expression Pedal Module

MST Ribbon Controller Eurorack Module Modular

Synthrotek Head Out - Headphone Output Eurorack Module DIY Kit

MST Dual 2164 VCA Eurorack PCBs and Panel by Synthrotek

Behringer 1036 Silver Sample & Hold/Random Voltage Modular Analog Synthesizer

MST '07 Buffered Multiple DIY Kit by Synthrotek Eurorack Module Modular