The **M2AS1-6222-R2/Q** is a high-performance, enterprise-grade solid-state drive (SSD) manufactured by **Kioxia** (formerly Toshiba Memory). This part belongs to the **CM6-R Series**, designed specifically for data center and enterprise server environments. --- ### 1. Key Technical Specifications The following table outlines the core electronic and performance characteristics of the component: | Feature | Specification | | :--- | :--- | | **Model Series** | Kioxia CM6-R (Read-Intensive) | | **Capacity** | 1.92 TB | | **Interface** | PCIe Gen4 x4, NVMe 1.4 | | **Form Factor** | 2.5-inch, 15mm Z-height (U.3) | | **Memory Type** | BiCS FLASH™ 3D TLC (Triple-Level Cell) | | **Endurance** | 1 DWPD (Drive Write Per Day) | | **Security Support** | SIE (Sanitize Instant Erase) / SED | --- ### 2. Electronic Components & Architecture The internal architecture of this drive consists of several critical electronic subsystems: #### A. The Controller The "brain" of the SSD is a proprietary Kioxia PCIe Gen4 NVMe controller. It manages: * **Error Correction Code (ECC):** Advanced LDPC (Low-Density Parity-Check) to ensure data integrity against cell degradation. * **Wear Leveling:** Algorithms that distribute write/erase cycles evenly across the NAND cells. * **Thermal Management:** Integrated sensors that throttle performance if the drive exceeds safe operating temperatures. #### B. NAND Flash Storage It utilizes **BiCS FLASH™**, which is Kioxia's proprietary 3D flash memory technology. In this specific model, it uses **96-layer or 112-layer TLC**, providing a balance between high storage density and electrical reliability. #### C. Power Loss Protection (PLP) A critical electronic feature of the R2/Q variant is the inclusion of **Tantalum capacitors** or similar energy storage components. These provide enough "hold-up" power to flush data from the volatile DRAM cache to the non-volatile NAND in the event of an unexpected power failure. #### D. Dual-Port Capability Unlike consumer SSDs, this electronic design supports **Dual-Port PCIe**. This allows two separate physical paths to the drive, providing hardware redundancy. If one path (or controller on the motherboard) fails, the drive remains accessible via the second port. --- ### 3. Interface: U.3 (SFF-TA-1001) The electronic pinout follows the **U.3 standard**. This is an evolutionary step from U.2 that allows a single backplane slot to support SAS, SATA, and NVMe drives (Tri-mode) depending on the host controller's capabilities. --- ### 4. Performance Metrics | Metric | Rated Speed | | :--- | :--- | | **Sequential Read** | Up to 6,900 MB/s | | **Sequential Write** | Up to 4,000 MB/s | | **Random Read (4KiB)** | Up to 1,400k IOPS | | **Power Consumption** | ~18.5W (Active Max) |