Hardware Spec Index

Altrix SN-6921 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN6921-PLUS · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index13,467 (SSDs scale)
Category rank#41,940
Street price$429
Power8 W (active)
Performance per dollar31.39
Released2020

Specifications

BrandAltrix
ModelAltrix SN-6921 Plus
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,000 MB/s
Sequential write4,800 MB/s
Random 4K read950K IOPS
NAND3D TLC, 176-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 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-6921 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/3738935 (accessed 2026-10-25).