The **M2AVS-D136-R2** is a specialized high-speed connector component, typically part of the **M.2 (NGFF) connector series** produced by manufacturers like Lotes or JAE. It is designed to facilitate the connection between a motherboard (host) and an M.2 expansion card (such as an NVMe SSD or a Wi-Fi module). --- ### 1. Key Technical Specifications Based on the standard nomenclature for this specific part number (R2 revision), here are the primary electronic and physical characteristics: | Feature | Specification | | :--- | :--- | | **Connector Type** | M.2 (Next Generation Form Factor - NGFF) | | **Mounting Type** | Surface Mount (SMT), Right Angle | | **Pin Count** | 67-Pin (Standard for M.2) | | **Keying** | Typically **M-Key** (Common for PCIe x4 NVMe SSDs) | | **Pitch** | 0.50 mm | | **Height** | Usually 3.2mm or 4.2mm (Model dependent) | | **Contact Plating** | Gold (Flash or 15u" depending on specific sub-code) | --- ### 2. Electronic Functions & Pinout The M2AVS series acts as a high-density bridge for several signal protocols. Because it is an M-Keyed connector, it supports the following electronic interfaces: 1. **PCI Express (PCIe):** Supports up to 4 lanes (x4) for high-speed data transfer (Gen 3 or Gen 4). 2. **SATA 3.0:** Provides legacy support for SATA-based M.2 drives. 3. **Power Delivery:** Pins are dedicated to providing **3.3V DC** to the module. 4. **Sideband Signals:** Includes clock signals (REFCLK), reset signals (PERST#), and sleep signals (CLKREQ#). --- ### 3. Physical Construction The "R2" suffix usually denotes a specific revision or packaging style (like Tape & Reel for automated assembly). * **Housing Material:** High-temperature thermoplastic (LCP - Liquid Crystal Polymer) to withstand reflow soldering temperatures. * **Contacts:** Copper alloy for high conductivity and durability. * **Solder Tabs:** Includes metal ear-tabs for mechanical stability to prevent the connector from lifting off the PCB during SSD installation. --- ### 4. Typical Application Circuit When integrating this part into a PCB design, the electronic layout usually follows this logic: ```c // Simplified Layout Logic [ Motherboard Chipset ] <---> [ Differential Pairs (TX/RX) ] <---> [ M2AVS-D136-R2 ] | [ 3.3V Rail ] <--- Decoupling Caps (10uF + 0.1uF) ``` ---