Hardware Spec Index

Altrix SN-6645 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN6645-PLUS · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index14,628 (SSDs scale)
Category rank#8,822
Street price$499
Power8 W (active)
Performance per dollar29.31
Released2022

Specifications

BrandAltrix
ModelAltrix SN-6645 Plus
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read7,100 MB/s
Sequential write5,600 MB/s
Random 4K read890K IOPS
NAND3D TLC, 218-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-6645 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/20089869 (accessed 2026-10-20).