The **M2AS1-4331-R** is a specific part number typically associated with high-performance **M.2 (NGFF) Connectors**, often manufactured by companies like **Foxconn** or similar electronic component giants. These components serve as the interface between a computer's motherboard and expansion cards (like NVMe SSDs or Wi-Fi modules). --- ### 1. Key Technical Specifications Based on the standard nomenclature for this series, here are the primary electronic and mechanical characteristics: | Feature | Specification | | :--- | :--- | | **Connector Type** | M.2 (Next Generation Form Factor - NGFF) | | **Pitch** | 0.50 mm | | **Mounting Type** | Surface Mount (SMT) / Right Angle | | **Number of Positions** | 67 Pins | | **Keying** | M-Key (Typically for PCIe x4 NVMe SSDs) | | **Operating Voltage** | 50V AC/DC | | **Current Rating** | 0.5A per pin | | **Height** | Usually 3.2mm or 4.2mm (standard profile) | --- ### 2. Functional Components The "electronic parts" of this connector consist of several critical elements that ensure data integrity and power delivery: * **Copper Alloy Contacts:** The pins are made of high-conductivity copper alloy, usually plated with **Gold (Au)** over Nickel. Gold is used to prevent oxidation and ensure a low-resistance connection for high-speed data. * **Liquid Crystal Polymer (LCP) Housing:** The plastic body is made of LCP, a high-temperature resistant material. This allows the part to survive the **Reflow Soldering** process without warping. * **Solder Pegs / Metal Tabs:** These are structural metal pieces on the sides that are soldered to the PCB. They provide mechanical stability so that inserting/removing an SSD doesn't rip the data pins off the board. --- ### 3. Signal Integrity Features Because the M2AS1 series is designed for **PCIe Gen 3 and Gen 4** speeds, the internal design focuses on: 1. **Impedance Control:** The spacing and shape of the pins are engineered to maintain a 100-ohm differential impedance. 2. **Crosstalk Reduction:** The staggered pin layout minimizes electromagnetic interference (EMI) between adjacent high-speed signal lanes. --- ### 4. Part Number Breakdown (Typical) While internal codes vary by manufacturer, the string generally translates as follows: * **M2**: Series designation (M.2 Connector). * **AS1**: Specific sub-series/mounting style (Right angle, top mount). * **4331**: Often refers to the specific height (e.g., 4.3mm) and plating thickness. * **-R**: Typically indicates **RoHS Compliance** or **Tape & Reel** packaging for automated assembly. ---