Hardware Spec Index

Mirenta SN-9991 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Mirenta · SKU SN9991-PRO · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index11,664 (SSDs scale)
Category rank#11,009
Street price$419
Power6 W (active)
Performance per dollar27.84
Released2021

Specifications

BrandMirenta
ModelMirenta SN-9991 Pro
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read4,900 MB/s
Sequential write4,100 MB/s
Random 4K read850K IOPS
NAND3D TLC, 238-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 TBW (0.33 DWPD)
Warranty5 years
HeatsinkNone

Related guides

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

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Cite this page: Hardware Spec Index, “Mirenta SN-9991 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/95033446 (accessed 2026-10-24).