ElmorLabs PMD-USB (Power Measurement Device with USB)


Only 14 left in stock

SKU: PMD-USB Category:


2023-01-10: Price increased to 60 USD (from 50 USD) but with 12VHPWR cable included

The ElmorLabs PMD lets you measure the voltage, current and power flowing through your CPU and GPU power cables. An OLED screen attached to the board shows you the current power consumption including detailed values for each connector. The PCIE1, EPS1, EPS2 connectors can each handle up to 30 A of continuous current and PCIE2 (dual connectors) up to 50 A for a measurement capability of total of 1680W at 12V. Peak readings up to 60 A are possible on each channel. By connecting it through USB you can view and log measurements on your PC.


  • 2x EPS 8-pin (CPU) and 3x PCIE 8-pin (GPU) power inputs from power supply
  • 5x custom output connectors for use with included cabling
  • PCIE1, EPS1, EPS2 channels 0-15.5 V 0-60 A, with max 30 A continuous load
  • PCIE2 (dual input) channel 0-15.5 V 0-60 A, with max 50 A continuous load
  • OLED screen displaying overall power consumption or power, voltage and current per channel
  • USB Type-C connector for extended readings, logging and oscilloscope functionality (up to TBD ksps)
  • Menu options for offset calibration, timeout behavior, averaging, display rotation
  • Firmware updatable over USB
  • Voltage @ 12V max +/- 0.2V
  • Current max 3% error +/- 0.7A (10A +/- 1.0A, 30A +/- 1.6A)


  • ElmorLabs PMD (circuit board)
  • Acrylic case including mounting hardware
  • 0.91″ OLED display
  • 2x EPS 8-pin output cables
  • 3x PCI-E 8-pin output cables
  • 1x PCI-E 12VHPWR output cable (please use with two separate channels, ex PCIE1+PCIE2, EPS1+EPS2)
  • 1x USB cable (Type-C to Type-A)