Lexar NM1090 PRO 4000GB

The Lexar NM1090 PRO 4000GB represents the saturation point of early consumer PCIe 5.0 technology, utilizing the Phison PS5026-E26 controller architecture. This high-bandwidth foundation is paired with Micron’s 232-layer 3D TLC NAND to achieve sequential throughput that effectively doubles the theoretical ceiling of the previous PCIe 4.0 generation. To manage the immense data mapping tables required for 4TB of high-speed storage, the drive employs a dedicated LPDDR4/LPDDR4X DRAM cache, ensuring low latency during random I/O operations. The active thermal solution on the NM1090 PRO is required to manage the Phison E26 controller's high thermal design power; the integrated fan connects via a dedicated header and must be powered during sustained write workloads to avoid the drive rapidly hitting critical junction temperatures and throttling heavily.

Key Specifications

• Interface: PCIe 5.0 x4 / NVMe 2.0
• Sequential Speeds: 14,000 MB/s Read / 13,000 MB/s Write
• Controller: Phison PS5026-E26 (12nm process)
• NAND Flash: Micron 232-Layer 3D TLC (B58R)
• DRAM Cache: Yes (Dedicated LPDDR4/4X)
• Encryption: AES 256-bit hardware encryption support
• Cooling: Integrated Active Heatsink (Fan-assisted)

Hardware Alternatives

• Crucial T705 4000GB: This is the closest architectural relative, sharing the exact E26 controller and high-speed variant of Micron’s 232-layer NAND to achieve the same 14 GB/s throughput tier.
• Corsair MP700 PRO: Another direct hardware clone utilizing the E26 platform, though often differentiated by the specific design of its active cooling solution (air vs. hydro).
• Seagate FireCuda 540: Shares the underlying E26 controller and NAND, though often tuned for slightly lower peak burst speeds in exchange for endurance-focused firmware parameters.