Hardware Spec Index

Novexa SN-6558 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN6558-ULTRA · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index8,275 (SSDs scale)
Category rank#2,558
Street price$179
Power5 W (active)
Performance per dollar46.23
Released2020

Specifications

BrandNovexa
ModelNovexa SN-6558 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,300 MB/s
Sequential write5,000 MB/s
Random 4K read1,130K IOPS
NAND3D TLC, 238-layer
CacheDDR4 DRAM, 1 GB
Endurance600 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-6558 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/8082791 (accessed 2026-10-25).