Hardware Spec Index

Altrix SN-3991 Plus 8TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN3991-PLUS · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index11,759 (SSDs scale)
Category rank#271
Street price$399
Power7 W (active)
Performance per dollar29.47
Released2020

Specifications

BrandAltrix
ModelAltrix SN-3991 Plus
Capacity8 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,500 MB/s
Sequential write4,000 MB/s
Random 4K read1,070K IOPS
NAND3D TLC, 218-layer
CacheDDR4 DRAM, 8 GB
Endurance4,800 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, “Altrix SN-3991 Plus 8TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/81469 (accessed 2026-10-21).