The **M2AS1-5442-R/N** is a specialized high-speed connector, typically part of the **M.2 (NGFF - Next Generation Form Factor)** family, often manufactured by companies like **UDE (Universal Device Electronics)**. These components are critical for interfacing solid-state drives (SSDs), Wi-Fi cards, and cellular modules with motherboards. --- ### 1. General Specifications The part number breakdown usually refers to a specific mechanical and electrical configuration: | Feature | Description | | :--- | :--- | | **Component Type** | M.2 (NGFF) Connector | | **Mounting Type** | Surface Mount (SMT) | | **Keying** | Likely "M-Key" or "B-Key" (determines protocol compatibility like PCIe x4 or SATA) | | **Pin Count** | 67-75 Positions (standard for M.2) | | **Orientation** | Right-Angle / Horizontal | | **Standoff Height** | 4.2mm (Commonly denoted by the "442" in the suffix) | --- ### 2. Key Electronic Characteristics These connectors are designed to handle high-frequency signals with minimal interference. * **Data Rate Support:** Designed for PCIe Gen 3, Gen 4, and potentially Gen 5, as well as SATA 3.0 and USB 3.0 signals. * **Contact Resistance:** Typically 50mΩ maximum to ensure stable power delivery and signal integrity. * **Current Rating:** Approximately 0.5A per pin. * **Voltage Rating:** 50V AC/DC. * **Dielectric Withstanding Voltage:** 300V AC for 1 minute. --- ### 3. Physical Construction The reliability of the M2AS1 series relies on high-quality materials to withstand heat and mechanical stress: 1. **Housing:** High-temperature thermoplastic (LCP - Liquid Crystal Polymer), UL94V-0 rated to survive reflow soldering. 2. **Contacts:** Copper alloy with Gold (Au) plating over Nickel. Gold plating is essential to prevent oxidation over time. 3. **Solder Pegs:** Often features metal "hold-downs" or "pegs" to provide mechanical strength to the PCB connection, preventing the connector from lifting during SSD installation. --- ### 4. Application Layout In a circuit, this part acts as the bridge between the **Host (CPU/Chipset)** and the **Endpoint (Peripheral)**: ```mermaid graph LR CPU[CPU / Chipset] -- High Speed Lanes --> M2[M2AS1-5442-R/N Connector] M2 -- Interface --> SSD[NVMe SSD / WiFi Card] ``` ---