Hardware Spec Index

Novexa SN-6421 Max 2TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN6421-MAX · Released 2023 · Updated 2026-10-21

Key facts

Benchmark index7,382 (SSDs scale)
Category rank#4,589
Street price$129
Power8 W (active)
Performance per dollar57.22
Released2023

Specifications

BrandNovexa
ModelNovexa SN-6421 Max
Capacity2 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read7,400 MB/s
Sequential write6,000 MB/s
Random 4K read1,030K IOPS
NAND3D QLC, 232-layer
CacheDRAM-less (HMB)
Endurance480 TBW (0.22 DWPD)
Warranty3 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, “Novexa SN-6421 Max 2TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/14901550 (accessed 2026-10-21).