Hardware Spec Index

Mirenta SN-6491 Pro 4TB PCIe 5.0 NVMe M.2 2280 SSD

SSDs · Mirenta · SKU SN6491-PRO · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index11,344 (SSDs scale)
Category rank#34,016
Street price$319
Power8 W (active)
Performance per dollar35.56
Released2025

Specifications

BrandMirenta
ModelMirenta SN-6491 Pro
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 5.0 x4, NVMe 2.0
Sequential read11,000 MB/s
Sequential write10,100 MB/s
Random 4K read2,500K IOPS
NAND3D TLC, 176-layer
CacheLPDDR4 DRAM, 4 GB
Endurance2,400 TBW (0.33 DWPD)
Warranty5 years
HeatsinkIncluded (recommended for sustained loads)

Related guides

NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 5.0 ExplainedPCIe 4.0 vs PCIe 5.0

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Cite this page: Hardware Spec Index, “Mirenta SN-6491 Pro 4TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/79063783 (accessed 2026-10-26).