Hardware Spec Index

Altrix SN-7666 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN7666-XT · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index7,324 (SSDs scale)
Category rank#6,892
Street price$129
Power7 W (active)
Performance per dollar56.78
Released2025

Specifications

BrandAltrix
ModelAltrix SN-7666 XT
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read7,100 MB/s
Sequential write6,100 MB/s
Random 4K read770K IOPS
NAND3D QLC, 238-layer
CacheDRAM-less (HMB)
Endurance200 TBW (0.18 DWPD)
Warranty3 years
HeatsinkHeatsink edition available

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-7666 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/3342973 (accessed 2026-10-21).