Hardware Spec Index

Novexa SN-4639 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN4639-ULTRA · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index5,152 (SSDs scale)
Category rank#44,666
Street price$59
Power7 W (active)
Performance per dollar87.32
Released2020

Specifications

BrandNovexa
ModelNovexa SN-4639 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read4,900 MB/s
Sequential write4,000 MB/s
Random 4K read930K IOPS
NAND3D QLC, 238-layer
CacheDRAM-less (HMB)
Endurance360 TBW (0.33 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-4639 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/20062305 (accessed 2026-10-24).