Hardware Spec Index

Mirenta SN-9966 XT 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Mirenta · SKU SN9966-XT · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index10,819 (SSDs scale)
Category rank#1,416
Street price$259
Power7 W (active)
Performance per dollar41.77
Released2020

Specifications

BrandMirenta
ModelMirenta SN-9966 XT
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,300 MB/s
Sequential write5,700 MB/s
Random 4K read1,120K IOPS
NAND3D TLC, 176-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 TBW (0.33 DWPD)
Warranty5 years
HeatsinkHeatsink edition available

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-9966 XT 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/7600376 (accessed 2026-10-21).