The **M3E72XQX-R** is a specific technical part number primarily associated with **Innodisk's DDR3 SDRAM** memory modules. These components are designed for industrial and embedded computing environments where reliability and stability are paramount. --- ### 1. Technical Specifications Breakdown The part number follows a specific nomenclature. Below are the core technical attributes for this electronic component: | Feature | Specification | | :--- | :--- | | **Technology** | DDR3 SDRAM | | **Form Factor** | SODIMM (Small Outline Dual In-line Memory Module) | | **Capacity** | 2GB / 4GB (Depends on sub-revision) | | **Data Rate** | 1600 MT/s (PC3-12800) | | **Voltage** | 1.5V (Standard) or 1.35V (Low Voltage / DDR3L) | | **Error Correction** | Non-ECC / Unbuffered | | **Temperature Range** | Industrial Grade (-40°C to +85°C) | --- ### 2. Key Electronic Components The module is comprised of several critical electronic sub-parts: 1. **DRAM Integrated Circuits (ICs):** The silicon chips that store the data. These are usually high-quality chips from Tier-1 manufacturers like Samsung, Micron, or SK Hynix, screened for industrial use. 2. **SPD EEPROM:** A small "Serial Presence Detect" chip that stores the module's timing, voltage, and manufacturer information, allowing the BIOS/UEFI to configure the system automatically. 3. **Passive Components:** Surface-mount resistors and capacitors used for signal termination and power decoupling to reduce electrical noise (EMI). 4. **PCB (Printed Circuit Board):** A multi-layer (typically 8-layer) board with gold-plated contacts (fingers) to ensure corrosion resistance and high conductivity. --- ### 3. Industrial Features Unlike standard consumer RAM, the **-R** designation and the **M3E** series often include industrial-specific enhancements: * **Thermal Sensor:** Integrated sensor to monitor memory temperature in real-time. * **Anti-Sulfuration:** Protection against sulfur-rich environments which can corrode silver alloys in electronic components. * **Gold Finger Plating:** 30μ” gold plating (thicker than consumer grade) to prevent oxidation during repeated insertions or high-vibration use. --- ### 4. Typical Applications * **Industrial Automation:** PLCs and industrial PCs. * **Networking:** Routers, switches, and firewall appliances. * **Embedded Systems:** Digital signage, kiosks, and medical imaging equipment. * **Transportation:** In-vehicle computers and ruggedized tablets.