Hardware Spec Index

Novexa SN-8558 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN8558-ULTRA · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index12,539 (SSDs scale)
Category rank#639
Street price$389
Power6 W (active)
Performance per dollar32.23
Released2023

Specifications

BrandNovexa
ModelNovexa SN-8558 Ultra
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,900 MB/s
Sequential write5,200 MB/s
Random 4K read1,200K IOPS
NAND3D TLC, 218-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, “Novexa SN-8558 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/7140065 (accessed 2026-10-22).