The **M2PE-16-R2/Q** is a specialized electronic module, typically associated with industrial computing and automation hardware (often manufactured by IEI Integration Corp). This specific part is a **PCI Express to Mini PCIe expansion riser card**. --- ### ## Technical Specifications & Components The following table breaks down the primary electronic characteristics of the module: | Component/Feature | Details | | :--- | :--- | | **Interface (Host)** | PCIe x1 (Standard Golden Finger) | | **Interface (Target)** | 2x Mini PCIe Slots | | **Form Factor** | Riser Card / Expansion Card | | **Power Management** | On-board voltage regulation (3.3V) | | **Bus Signal** | PCIe Gen 2.0 (Backwards compatible with 1.1) | | **Compatibility** | Standard PCI Express slots in industrial PCs | --- ### ## Core Functionality 1. **Signal Routing:** The electronic circuitry primarily acts as a bridge. It takes the PCIe signals from a motherboard's standard x1 slot and routes them to two Mini PCIe sockets. 2. **Voltage Regulation:** Since standard PCIe slots provide 12V and 3.3V, but Mini PCIe cards often have sensitive power requirements, the PCB contains discrete capacitors and voltage regulators to ensure a stable **3.3V DC** supply to the daughter cards. 3. **Expansion Capability:** It is designed to allow small-form-factor modules (like Wi-Fi cards, Bluetooth modules, or mSATA SSDs) to be used in a full-sized desktop or industrial rackmount chassis. --- ### ## Electronic Pinout Context While the card is plug-and-play, the electronic design follows the **PCI Express Mini Card Electromechanical Specification**. * **Mini PCIe Slots:** 52-pin edge connectors. * **Data Lanes:** Differential pairs (RX+/RX- and TX+/TX-) for high-speed data transfer. * **Clocking:** 100MHz reference clock distribution to both slots. --- ### ## Common Applications * **Industrial IoT Gateways:** Adding wireless connectivity (LTE/4G) to a PC that lacks native Mini PCIe slots. * **Storage Expansion:** Using Mini PCIe mSATA converters for compact OS booting. * **Embedded Systems:** Prototyping mobile chipsets on a standard desktop motherboard.