GMS-945EU 45 Watt Power Supply

Shallow depth accommodates even skiffs

The GMS-945EU 45 Watt power supply, housed in a 1.2 inch (6 HP) wide Eurorack module converts a 12 Volt DC input into standard bus power outputs for Eurorack modules. The unit will supply up to 1.25 Amps of + and - 12 Volts DC and up to 3 Amps at +5 Volts. Outputs from the supply are provided on a 16 pin Eurorack power male header and an MTA100 single row 6 pin header.


  • Operation Manual
  • Datasheet
  • ModularGrid

Technical Specifications

Conversion Efficiency

Input Voltage Range
9-24 Volts

Input Current at 12 VDC
4.5 A.

Module Output
+12 Volts 1.25 A.,
-12 Volts 1.25 A.,
+5 Volts 3 A.

Module Size
Panel height - 5.03 inches (128 mm);
Panel width - 1.2 inches (30.5 mm);
Depth (behind panel) 2.1 inches (53 mm)



We produce electronic synthesizer modules in the two most popular formats, MU (Moog compatible 5U) and EU (Eurorack compatible 3U). A wide range of voltage controlled modules including oscillators, amplifiers, mixers, envelope generators, special effects units, wave generators, filters, power systems and cases allow users complete freedom to configure any desired electronic music instrument.


Grove Audio builds microphones, preamplifiers, equalizers, compressors and other professional audio equipment for performance and studio use. We build units in popular formats such as 19 inch rack mount and 500 series 3U modules. We can also produce custom designs on request. Contact us for a consultation.


You can explore all of our products, download spec sheets, and purchase our products in the Grove Audio Synth Store. You can also learn about our periodic specials and new product introductions. Click the button below to go directly to the store.

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Grove Audio has been manufacturing professional recording and modularized electronics for musicians and performers since 1995.