Hardware Spec Index

Mirenta SN-4478 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Mirenta · SKU SN4478-XT · Released 2022 · Updated 2026-10-24

Key facts

Benchmark index8,105 (SSDs scale)
Category rank#47,486
Street price$149
Power7 W (active)
Performance per dollar54.40
Released2022

Specifications

BrandMirenta
ModelMirenta SN-4478 XT
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,600 MB/s
Sequential write4,800 MB/s
Random 4K read1,110K IOPS
NAND3D TLC, 238-layer
CacheDRAM-less (HMB)
Endurance600 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-4478 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/6167327 (accessed 2026-10-24).