The **M2MS-Z-R2/X1** is a specific technical configuration of an industrial-grade **M.2 (NGFF) to Mini PCI Express (Mini PCIe) Adapter**. These parts are primarily used in embedded systems, industrial PCs, and networking hardware to interface modern M.2 wireless modules with legacy Mini PCIe slots. --- ### 1. Component Identification The part number typically breaks down into the following mechanical and electrical specifications: | Feature | Specification | Description | | :--- | :--- | :--- | | **Form Factor** | Mini PCIe (Full-size) | Plugs into a standard Mini PCI Express slot. | | **Socket Type** | M.2 Key E / A+E | Designed for WiFi, Bluetooth, and dual-mode modules. | | **Voltage** | 3.3V DC | Uses the power rail provided by the Mini PCIe bus. | | **Signal Interface** | PCIe & USB 2.0 | Routes signals from M.2 pins to Mini PCIe pins. | --- ### 2. Key Electronic Components The adapter is not just a physical bridge; it contains specific circuitry to ensure signal integrity and power stability: * **Voltage Regulators (LDOs):** Often includes a Low-Dropout regulator to stabilize the 3.3V rail, as M.2 modules can be sensitive to voltage ripples common in older industrial motherboards. * **SIM Card Slot (Optional/Variant):** If the module supports WWAN (3G/4G), a SIM card holder is often integrated on the underside of the PCB. * **Coupling Capacitors:** Small surface-mount capacitors used to filter high-frequency noise from the PCIe data lines. * **U.FL to IPEX Connectors:** While the adapter itself provides the interface, it often requires RF pigtails to transition from the M.2 module's tiny antenna ports to standard chassis mounts. --- ### 3. Technical Specifications Table | Parameter | Value | | :--- | :--- | | **Bus Interface** | PCI Express Base Specification 1.1 | | **USB Support** | USB 2.0 (via Mini PCIe pins 36 & 38) | | **M.2 Size Support** | 2230, 2242 (Type 2230 is standard) | | **Operating Temp** | -40°C to +85°C (Industrial Grade) | | **Dimensions** | 30.00mm x 50.95mm (Full-size Mini Card) | --- ### 4. Typical Application Use Case This part is commonly used when a technician or engineer needs to upgrade an older device: 1. **Industrial PC Upgrade:** Installing a modern Intel AX210 (Wi-Fi 6E) M.2 card into an older motherboard that only has Mini PCIe slots. 2. **IoT Gateways:** Adding 4G/LTE connectivity to a gateway that lacks a native M.2 slot. 3. **Signal Conversion:** Since Mini PCIe and M.2 both carry PCIe and USB signals, this adapter acts as a passive "re-mapper" of the physical pins. ---