Overview
The ElmorLabs PMD2X is a specialized hardware power measurement device engineered for precision bench testing, component analysis, and enthusiast diagnostics. Designed to intercept power streams between power supplies and core PC hardware, the PMD2X provides multi-rail monitoring across an ATX 24-pin connection, dual EPS 8-pin inputs, triple PCIe 8-pin inputs, and a dedicated PCIe 5.0 / ATX 3.0 12V-2×6 (12VHPWR) interface. A defining architectural feature is its individual per-wire current and voltage sensing along the 12V-2×6 connector, allowing engineers and testers to detect phase imbalance and localized connector resistance before connector overheating occurs. Real-time telemetry is piped directly to a sharp 2.4-inch monochrome OLED display, while a USB Type-C interface exposes advanced data logging, extended telemetry streams, and oscilloscope functionality supported by USB-updatable firmware.
Physically, the PMD2X employs an open-frame sandwich enclosure composed of clear acrylic top and bottom plates secured by metal standoffs and pillars. While this layout keeps the footprint compact and enables quick access to power headers and headers on test benches, the exposed acrylic build necessitates careful handling to prevent mechanical strain when connecting rigid, high-gauge PSU harness cables. Thermally, the board relies entirely on passive dissipation through multi-layer heavy copper PCB planes, resulting in completely silent operation under all standard monitoring conditions. An integrated audio buzzer provides active threshold protection by sounding audible alerts when maximum current limits are breached, and an onboard 2×7-pin socket accommodates a bundled Seeed Studio XIAO ESP32C6 module for customizable wireless telemetry transmission.
Technical Specifications
| Display Type | 2.4-inch OLED (White) |
| Pcie 12v 2x6 Connector | 1x 12VHPWR / 12V-2x6 (51 A continuous load, per-wire monitoring) |
| Cpu Eps Connectors | 2x EPS 8-pin (28 A continuous load each) |
| Gpu Pcie Connectors | 3x PCIe 8-pin (27 A continuous load each) |
| Motherboard Atx Connector | 1x ATX 24-pin (12V 14 A, 5V 25 A, 5VSB 5 A, 3.3V 25 A) |
| Voltage Measurement Accuracy | ±0.1 V (at 12 V) |
| Current Measurement Accuracy | ±0.5 A (at 10 A) |
| Host Interface | USB Type-C (extended telemetry, logging, oscilloscope) |
| Wireless Module | Seeed Studio XIAO ESP32C6 (via 2x7 pin socket) |
| Audible Alert | Integrated buzzer for over-current warning |
| Firmware Updates | Supported via USB Type-C |
| Dimensions | 145 x 120 x 28 mm (W x H x D) |
| Enclosure Type | Dual acrylic plates with standoffs and pillars |
- Per-wire voltage and current monitoring across 12VHPWR / 12V-2x6 connections
- Comprehensive rail coverage spanning ATX 24-pin, dual EPS 8-pin, and triple PCIe 8-pin inputs
- Modular Seeed Studio XIAO ESP32C6 socket for custom wireless telemetry
- Onboard 2.4-inch OLED screen and USB-C PC logging with oscilloscope functionality
- Open acrylic standoff enclosure lacks structural impact protection against accidental bench drops
- Stiff, high-gauge PSU cable bundles can impart physical torque onto onboard connectors