The part number **2291700-R** refers to a high-performance **PCIe Gen 4.0 NVMe Solid State Drive (SSD)**, specifically a customized OEM variant often associated with Enterprise or Data Center storage solutions (typically manufactured by companies like Microsemi/Adaptec or Western Digital/HGST for specific controller applications). --- ### ## Technical Specifications The 2291700-R is designed for high-throughput environments. Below are the key electronic and performance characteristics: | Feature | Specification | | :--- | :--- | | **Interface** | PCIe Gen 4.0 x4 | | **Form Factor** | M.2 2280 or U.2 (Variant dependent) | | **Protocol** | NVMe 1.4 | | **NAND Flash Type** | 3D TLC (Triple-Level Cell) | | **Capacity** | Typically 1.6TB / 3.2TB / 6.4TB | | **Data Reliability** | End-to-End Data Path Protection | | **Power Management** | Active Power Management & Thermal Throttling | --- ### ### Key Electronic Components The "R" suffix in the part number usually denotes a **Retail** or **RoHS Compliant** version, ensuring it meets environmental safety standards. The internal circuitry consists of several critical subsystems: 1. **The Controller:** The "brain" of the SSD. It manages the wear-leveling algorithms, error correction (ECC), and the interface between the host computer and the NAND flash chips. 2. **DRAM Cache:** High-speed volatile memory used to store the "mapping table" (LBA to physical NAND address), which significantly speeds up data retrieval. 3. **NAND Flash Array:** The non-volatile storage chips where data is physically kept. 4. **PMIC (Power Management Integrated Circuit):** Regulates the voltages required by the controller and NAND, ensuring stability during voltage spikes. 5. **Tantalum/Polymer Capacitors:** In enterprise versions, these provide "Power Loss Protection" (PLP), giving the drive enough energy to flush the cache to the NAND if power is suddenly cut. --- ### ### Performance Characteristics Because this part utilizes **PCIe 4.0**, it doubles the bandwidth compared to its Gen 3 predecessors. * **Sequential Read:** Up to 7,000 MB/s * **Sequential Write:** Up to 5,000 MB/s * **MTBF (Mean Time Between Failures):** 2.0 million hours * **Endurance:** High DWPD (Drive Writes Per Day) rating, suitable for write-intensive server workloads. ---