Hardware Spec Index

Altrix SN-1991 Plus 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN1991-PLUS · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index5,507 (SSDs scale)
Category rank#13,647
Street price$79
Power6 W (active)
Performance per dollar69.71
Released2026

Specifications

BrandAltrix
ModelAltrix SN-1991 Plus
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,800 MB/s
Sequential write4,000 MB/s
Random 4K read1,100K IOPS
NAND3D TLC, 176-layer
CacheDRAM-less (HMB)
Endurance300 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-1991 Plus 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/52321252 (accessed 2026-10-25).