Hardware Spec Index

Novexa SN-6646 Ultra 1TB PCIe 3.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN6646-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index6,521 (SSDs scale)
Category rank#27,451
Street price$89
Power6 W (active)
Performance per dollar73.27
Released2019

Specifications

BrandNovexa
ModelNovexa SN-6646 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 3.0 x4, NVMe 1.4
Sequential read2,100 MB/s
Sequential write1,600 MB/s
Random 4K read380K IOPS
NAND3D QLC, 232-layer
CacheDRAM-less (HMB)
Endurance240 TBW (0.22 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-6646 Ultra 1TB PCIe 3.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/4353527 (accessed 2026-10-20).