Hardware Spec Index

Novexa SN-8478 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN8478-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index5,051 (SSDs scale)
Category rank#32,471
Street price$49
Power5 W (active)
Performance per dollar103.08
Released2021

Specifications

BrandNovexa
ModelNovexa SN-8478 Ultra
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,100 MB/s
Sequential write2,800 MB/s
Random 4K read1,060K IOPS
NAND3D QLC, 176-layer
CacheDRAM-less (HMB)
Endurance180 TBW (0.33 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, “Novexa SN-8478 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/5437012 (accessed 2026-10-19).