The **M3E28XQD-R** is a high-performance, industrial-grade Flash storage module, typically categorized as an **mSATA (Mini-SATA) Solid State Drive (SSD)** manufactured by **Innodisk**. It belongs to their **M3E** series, which is specifically designed for embedded systems, automation, and industrial computing. --- ## 1. Technical Specifications The core electronic components and performance metrics of the M3E28XQD-R are detailed below: | Feature | Specification | | :--- | :--- | | **Form Factor** | mSATA (JEDEC MO-300) | | **Interface** | SATA III 6.0 Gb/s (Backward compatible with SATA II/I) | | **Flash Type** | iSLC (Innodisk’s proprietary MLC-based high-endurance tech) | | **Capacity Range** | Typically 8GB to 128GB (Part number specific) | | **Sequential Read** | Up to 520 MB/s | | **Sequential Write** | Up to 450 MB/s | | **Input Voltage** | 3.3V DC ± 5% | | **Power Consumption** | Max: 2.0W / Idle: 0.5W | --- ## 2. Key Electronic Technologies The "R" suffix and the "M3E" designation highlight several specialized electronic features used in this module: ### iSLC Technology The device utilizes **iSLC**, an exclusive technology that manages Multi-Level Cell (MLC) flash as if it were Single-Level Cell (SLC). * **Electronic Benefit:** It increases endurance (Program/Erase cycles) significantly compared to standard MLC, reaching up to 30,000 cycles. It provides a more stable voltage threshold, reducing bit errors. ### Data Security & Integrity * **iData Guard:** A power management circuit that ensures data currently being written is safely moved to the flash during an unexpected power loss. * **iCell Technology:** (Optional/Inherent in R-series) Uses high-reliability capacitors to provide emergency power buffer during voltage drops. * **ECC (Error Correction Code):** High-level hardware ECC engine to detect and correct signal noise in the NAND cells. ### Environmental Design (Industrial Grade) * **Thermal Sensor:** Integrated circuitry to monitor internal temperatures and trigger thermal throttling if the drive exceeds safe limits. * **Vibration/Shock Resistance:** No moving parts; the electronic assembly is rated for high G-force environments (Shock: 1500G@0.5ms). --- ## 3. Connector Pinout Overview As an mSATA device, the electronic interface consists of a 52-pin edge connector. Key pin groups include: 1. **Power (3.3V):** Pins 2, 24, 39, 41, 52. 2. **SATA Differential Pairs:** * **Transmit (TX+/TX-):** Pins 31, 33. * **Receive (RX+/RX-):** Pins 23, 25. 3. **Ground (GND):** Multiple pins to ensure signal integrity and reduce EMI (Electromagnetic Interference). --- ## 4. Common Applications Due to its robust electronic architecture, the M3E28XQD-R is found in: * **Industrial PCs (IPC):** Used in factory automation. * **Transportation:** In-vehicle computing and signaling. * **Defense:** Ruggedized tablets and communication modules. * **Networking:** Firewalls and routers requiring high-reliability boot drives.