Hardware Spec Index

Mirenta SN-9478 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Mirenta · SKU SN9478-ULTRA · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index5,200 (SSDs scale)
Category rank#44,547
Street price$49
Power8 W (active)
Performance per dollar106.12
Released2020

Specifications

BrandMirenta
ModelMirenta SN-9478 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,000 MB/s
Sequential write4,700 MB/s
Random 4K read1,080K IOPS
NAND3D QLC, 232-layer
CacheDRAM-less (HMB)
Endurance200 TBW (0.18 DWPD)
Warranty3 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-9478 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/76980034 (accessed 2026-10-25).