MSI SPATIUM M461 Gen 4 2TB M.2 NVMe PCIe 4.0 x4 Internal Solid State Drive

MSI SPATIUM M461 2TB PCIe 4.0 NVMe M.2 SSD S78-440Q550-P83

The MSI SPATIUM M461 (S78-440Q550-P83) is a high-performance internal solid state drive designed to leverage the PCIe Gen4 interface for enhanced data throughput. This 2 TB capacity model is engineered for mainstream users, gamers, and creators who require a balance of high storage density and rapid file access. Utilizing the M.2 2280 single-sided form factor, it ensures broad compatibility with modern thin-and-light laptops and desktop motherboards.

Processing and Data Velocity
Operating on the PCIe Gen4 x4 interface and compliant with the NVMe 1.4 standard, the M461 2TB achieves sequential read speeds of up to 5,000 MB/s and sequential write speeds of up to 4,200 MB/s. Powered by the Phison E21T controller, it utilizes Host Memory Buffer (HMB) technology to maintain high-speed performance without the need for a dedicated DRAM chip, effectively reducing boot times and accelerating application responsiveness.

Memory Architecture and Technology
The drive is constructed using high-density 3D NAND flash memory, allowing for its 2 TB capacity in a compact M.2 2280 design. This architecture provides optimized power efficiency and structural reliability, as the lack of moving parts makes the drive inherently resistant to physical shock and vibration. Its slim 2.15mm profile allows for installation in space-constrained hardware environments without interfering with other components.

Data Protection and Error Correction
To maintain long-term data integrity, the SPATIUM M461 incorporates several advanced reliability features, including LDPC (Low-Density Parity Check) Error Correction Code and End-to-End (E2E) Data Path Protection. It also supports SMART and TRIM commands to monitor drive health and optimize storage lifespan. Security is managed through TCG Pyrite hardware encryption, providing a standard layer of data safety for sensitive information.

Endurance and System Reliability
The S78-440Q550-P83 model features an endurance rating of 450 TBW (Total Bytes Written) and a Mean Time Between Failures (MTBF) of 1.5 million hours. It is designed to operate efficiently within a temperature range of 0°C to 70°C. Users can monitor performance and manage firmware updates through the MSI Center software, ensuring the drive remains optimized for the latest system requirements and security protocols.