Hardware Spec Index

Altrix SN-8421 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN8421-PLUS · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index10,728 (SSDs scale)
Category rank#9,994
Street price$279
Power5 W (active)
Performance per dollar38.45
Released2025

Specifications

BrandAltrix
ModelAltrix SN-8421 Plus
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,600 MB/s
Sequential write6,200 MB/s
Random 4K read790K IOPS
NAND3D TLC, 176-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

Similar SSDs

ModelBenchmarkPriceCompare
Mirenta SN-5612 Max 1TB PCIe 4.0 NVMe M.2 2280 SSD8,696$189Compare
Altrix SN-9119 Ti 1TB PCIe 4.0 NVMe M.2 2280 SSD6,158$99Compare
Novexa SN-7316 Ti 500GB SATA 2.5-inch SSD3,796$39Compare
Caldera SN-4266 Ultra 2TB PCIe 4.0 NVMe M.2 2280 SSD7,007$119Compare
Caldera SN-3170 Max 4TB PCIe 4.0 NVMe M.2 2280 SSD12,246$399Compare
Strivon SN-8359 Plus 8TB PCIe 5.0 NVMe M.2 2280 SSD11,156$299Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Altrix SN-8421 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/3584688 (accessed 2026-10-25).