Corsair MP700 PRO SE 4000GB

The Corsair MP700 PRO SE 4000GB represents the upper threshold of the PCIe 5.0 ecosystem, using the Phison PS5026-E26 controller paired with Micron’s 232-layer 3D TLC NAND. The SE designation indicates NAND flash operating at the full 2400 MT/s interface speed, distinguishing it from earlier Gen5 drives limited to 1600 or 2000 MT/s. The drive includes an LPDDR4 DRAM cache for low-latency random operations and consistent sustained write performance for high-bandwidth workstation tasks. Field notes: the Phison E26 controller has high thermal density and will aggressively throttle or initiate thermal shutdown above ~80°C, so passive cooling is generally insufficient; successful deployment requires Corsair’s active cooling variants or a high-mass motherboard heatsink with direct case airflow. To achieve the rated 14,000 MB/s throughput, the drive must be installed in a native PCIe 5.0 M.2 slot without lane bifurcation conflicts from the GPU.

Key Specifications

• Interface: PCIe 5.0 x4 (NVMe 2.0)
• Controller: Phison PS5026-E26 (12nm process)
• NAND Flash: Micron 232-Layer 3D TLC (B58R) running at 2400 MT/s
• Sequential Performance: Up to 14,000 MB/s Read / 12,000 MB/s Write
• DRAM Cache: Yes (LPDDR4)
• Endurance: 3000 TBW
• Optimization: Microsoft DirectStorage ready; AES 256-bit Encryption support

Hardware Alternatives

• Crucial T705 4000GB: The most direct hardware relative, sharing the exact controller and NAND configuration for identical theoretical performance ceilings.
• Sabrent Rocket 5: Utilizes the same E26 architecture and high-speed flash, often competing on firmware maturity and thermal management strategies.
• Corsair MP700 PRO (Non-SE): The immediate predecessor; it shares the E26 controller but uses slower NAND transfer rates (typically 2000 MT/s), resulting in lower peak sequential speeds (approx. 12,400 MB/s).