Hardware Spec Index

Novexa SN-6446 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN6446-ULTRA · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index10,828 (SSDs scale)
Category rank#37,721
Street price$369
Power6 W (active)
Performance per dollar29.34
Released2022

Specifications

BrandNovexa
ModelNovexa SN-6446 Ultra
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,900 MB/s
Sequential write5,500 MB/s
Random 4K read1,080K 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-6446 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/543582 (accessed 2026-10-26).