Hardware Spec Index

Novexa SN-6643 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN6643-PRO · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index10,346 (SSDs scale)
Category rank#30,317
Street price$299
Power7 W (active)
Performance per dollar34.60
Released2022

Specifications

BrandNovexa
ModelNovexa SN-6643 Pro
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read7,000 MB/s
Sequential write6,500 MB/s
Random 4K read1,130K IOPS
NAND3D TLC, 218-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 TBW (0.33 DWPD)
Warranty5 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-6643 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/19085316 (accessed 2026-10-19).