Hardware Spec Index

Altrix SN-3666 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN3666-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index5,075 (SSDs scale)
Category rank#34,620
Street price$49
Power5 W (active)
Performance per dollar103.57
Released2021

Specifications

BrandAltrix
ModelAltrix SN-3666 Ultra
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,400 MB/s
Sequential write4,000 MB/s
Random 4K read960K IOPS
NAND3D QLC, 176-layer
CacheDRAM-less (HMB)
Endurance100 TBW (0.18 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, “Altrix SN-3666 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/51450303 (accessed 2026-10-20).