Hardware Spec Index

Altrix SN-4258 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN4258-ULTRA · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index11,717 (SSDs scale)
Category rank#45,890
Street price$429
Power8 W (active)
Performance per dollar27.31
Released2021

Specifications

BrandAltrix
ModelAltrix SN-4258 Ultra
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,700 MB/s
Sequential write4,300 MB/s
Random 4K read1,080K IOPS
NAND3D TLC, 238-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 TBW (0.33 DWPD)
Warranty5 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-4258 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/12796348 (accessed 2026-10-24).