The **M2AS1-6434-R/Q** is a high-performance, high-speed connector part typically associated with the **M.2 (Next Generation Form Factor - NGFF)** standard, manufactured by companies like **Lotes**. These components are critical for interfacing solid-state drives (SSDs), Wi-Fi modules, and other expansion cards with a computer's motherboard. --- ### 1. Technical Specifications The part number generally breaks down into specific physical and electrical characteristics: | Feature | Description | | :--- | :--- | | **Connector Type** | M.2 (NGFF) Slot | | **Orientation** | Right Angle / Surface Mount (SMT) | | **Pin Count** | 67 Pins (Standard for M.2) | | **Keying** | Usually "M Key" or "B Key" (depending on specific sub-variant) | | **Height** | 4.34mm (The "6434" often refers to the stack height/dimensions) | | **Plating** | Gold Flash or Selective Gold plating for high conductivity | --- ### 2. Key Electronic Components & Materials #### A. Contact Pins * **Material:** Usually Phosphor Bronze or Copper Alloy. * **Function:** Designed for high-speed signal integrity, supporting PCIe Gen 3/4/5, SATA 3.0, and USB 3.0 protocols. * **Plating:** Gold plating prevents oxidation and ensures low contact resistance over multiple insertion cycles. #### B. Housing (Insulator) * **Material:** High-Temperature Thermoplastic (LCP - Liquid Crystal Polymer). * **Function:** Provides structural integrity and electrical isolation between pins. It must withstand the high heat of **reflow soldering** during the PCB assembly process. #### C. Solder Tabs/Nails * **Material:** Stainless steel or copper alloy with tin plating. * **Function:** These are the large metal tabs on the sides that provide mechanical "anchoring" to the PCB, ensuring the connector doesn't rip off the board when a module is inserted. --- ### 3. Application Use Cases This specific connector is used in environments where vertical space is a factor but high data throughput is required: 1. **Laptops/Ultrabooks:** To connect NVMe SSDs. 2. **Industrial PCs:** For compact storage or communication modules. 3. **Data Centers:** High-density server blades using M.2 boot drives. --- ### 4. PCB Footprint Considerations When implementing this part in a CAD design (like Altium or Eagle), engineers must account for: * **SMT Pads:** Precise copper pad sizing for the 0.5mm pitch pins. * **Keep-out Zones:** Areas under the connector where no traces should run to avoid interference or short-circuiting with the shielding. * **Grounding:** Ensuring the mounting tabs are connected to the ground plane to reduce EMI (Electromagnetic Interference).