4ms Row Power 40

Regular price $155.00

ROW POWER is a clean, regulated, and protected power solution for eurorack systems. 

ROW POWER 40 provides 40W of power, suited for up to two typical eurorack rows (+12@1.5A/-12@1.3A/5@1.5A)

Simply plug a laptop style power supply into either of the barrel plugs on the 4HP panel. Connect your modules via flying-bus cables, or connect the ROW POWER to a Distro Board.

Daisy-chain multiple ROW POWERS to use a single power brick for multiple rows. Each row will be independently regulated and protected for ultra-low cross-talk between rows. Rows can also be hot-swapped (plugged/unplugged without powering the whole system down).


  • Two power jacks for daisy-chaining multiple ROW POWERS: a common laptop-style power brick could power 3-5 rows (typical)

  • On/off switch cuts power without interrupting the daisy-chain

  • ROW POWER 40 is suited for up to 2 typical eurorack rows

  • Ultra-clean: Each rail is separately regulated with high-grade components

  • Runs cool: ROW POWER is efficient so it won't heat up your system. Electronics like to chill!

  • Skiff-friendly: only 27mm (1.1") with power connectors installed.

  • CV/Gate headers for expansion

  • Blade tabs for power entry, to be used in custom installations (e.g. if the 4HP panel is not used)

  • Available in matte black, or white panel (limited time)


  • ROW POWER 40: +12V @ 1.5A, -12V @ 1.25A, +5V @ 1.5A

  • Powered by laptop-style DC power supply: 2.1mm barrel, positive center, 15V-20V.

  • A 90W power brick typically powers about 416HP (4 rows of 104HP).

  • Noise performance figures to be released

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