Based on the product code provided, the **W2AC-A3BA-R2** is a specialized power connector cable assembly typically used in industrial computing, specifically associated with high-end workstation motherboards or server backplanes (often linked to brands like ASUS or Advantech). Below is the technical breakdown of its electronic components and specifications. --- ### 1. Technical Specifications | Feature | Description | | :--- | :--- | | **Component Type** | Internal Power Cable Assembly | | **Configuration** | 20-pin to 24-pin ATX Power Adapter/Extension | | **Material** | Copper Stranded Wire with PVC Insulation | | **Standard** | RoHS Compliant | | **Revision** | R2 (Indicates second hardware revision/improvement) | --- ### 2. Key Electronic Parts & Construction #### A. Connectors * **Primary Connector:** A high-density Molex-style housing. Depending on the specific application (e.g., ASUS workstation boards), this is often a 20-pin female connector designed to mate with a proprietary power header on a motherboard. * **Secondary Connector:** A standard 24-pin ATX male connector designed to interface with a standard PC Power Supply Unit (PSU). #### B. Wiring Harness * **Wire Gauge:** Typically utilizes **18 AWG (American Wire Gauge)**. This gauge is chosen to handle the current load required for CPU and peripheral power without excessive heat buildup or voltage drop. * **Color Coding:** Follows standard ATX power conventions (Yellow for 12V, Red for 5V, Orange for 3.3V, Black for Ground). #### C. Signal Mapping The "Electronic Part" logic of this cable involves a specific **pinout mapping**. It acts as a bridge to ensure that power signals from a standard PSU are routed to the non-standard pin configuration of specific industrial motherboards, ensuring the `Power_On` and `Power_Good` signals are synchronized. --- ### 3. Application Use Case This part is primarily used in **Industrial PC (IPC)** environments. * **Compatibility:** It is frequently listed as an accessory for the ASUS WS (Workstation) series or Advantech industrial chassis. * **Function:** It allows a standard high-wattage ATX power supply to power a specialized motherboard that may have restricted space or a proprietary power input layout. --- ### 4. Safety and Regulatory Features 1. **UL Listing:** The wires are typically UL1007 rated, meaning they are resistant to moisture, oil, and acids, and are rated for temperatures up to 80°C. 2. **Latch Mechanism:** Both ends feature mechanical locking latches to prevent accidental disconnection due to vibration (critical in industrial settings).