Hardware Spec Index

Altrix SN-4021 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN4021-ULTRA · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index5,538 (SSDs scale)
Category rank#38,527
Street price$79
Power8 W (active)
Performance per dollar70.10
Released2025

Specifications

BrandAltrix
ModelAltrix SN-4021 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,800 MB/s
Sequential write5,500 MB/s
Random 4K read840K IOPS
NAND3D TLC, 218-layer
CacheDRAM-less (HMB)
Endurance600 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-4021 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/4773243 (accessed 2026-10-21).