The **W2CE-1A1-R/N** is a specific model identifier typically associated with **M.2 (NGFF) Key E Connectors**, often manufactured by companies like **Foxconn** or similar high-volume electronic component suppliers. These connectors are primarily used for wireless connectivity modules (Wi-Fi and Bluetooth). --- ## 1. Technical Specifications The following table outlines the physical and electrical characteristics typical of this component series: | Parameter | Specification | | :--- | :--- | | **Interface Type** | M.2 (NGFF) | | **Keying** | Key E (Support for WiFi, BT, NFC) | | **Number of Pins** | 75 Positions | | **Pitch** | 0.50 mm | | **Mounting Type** | Surface Mount (SMT) / Right Angle | | **Contact Plating** | Gold Flash or Selective Gold | | **Height** | Typically 4.2mm or 3.2mm (varies by sub-model) | --- ## 2. Pinout and Keying Logic The "Key E" designation is critical for electrical compatibility. It prevents the insertion of incompatible modules (like SSDs) into the wireless slot. * **Key E Functionality:** Used for PCIe x2, USB 2.0, I2C, and SDIO. * **Voltage:** Operates on 3.3V power rails. * **Signal Integrity:** Designed for high-speed data transmission required by Wi-Fi 6/6E and Bluetooth 5.x standards. --- ## 3. Application Use Cases This part is commonly found in the following hardware environments: 1. **Motherboards:** Located near the I/O shield for pre-installed Wi-Fi cards. 2. **Laptops/NUCs:** The standard interface for modular wireless communication. 3. **Industrial PCs:** Used for adding IoT connectivity modules. --- ## 4. Part Number Breakdown (Typical) While naming conventions vary slightly by manufacturer, the code usually breaks down as follows: * **W2CE:** Product Series (M.2 Connector). * **1A1:** Specific configuration (often denoting height and pin count). * **R/N:** Packaging or Lead-Free/RoHS compliance markers (Tape & Reel vs Tray).