Hardware Spec Index

Altrix SN-2156 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN2156-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index13,963 (SSDs scale)
Category rank#37,419
Street price$569
Power6 W (active)
Performance per dollar24.54
Released2021

Specifications

BrandAltrix
ModelAltrix SN-2156 Ultra
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,400 MB/s
Sequential write5,800 MB/s
Random 4K read1,210K IOPS
NAND3D TLC, 238-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

Similar SSDs

ModelBenchmarkPriceCompare
Caldera SN-8144 Pro 8TB PCIe 3.0 NVMe M.2 2280 SSD14,734$559Compare
Caldera SN-6788 Plus 1TB PCIe 4.0 NVMe M.2 2280 SSD4,989$59Compare
Strivon SN-8188 Ti 8TB PCIe 5.0 NVMe M.2 2280 SSD13,682$599Compare
Novexa SN-3393 Plus 1TB PCIe 4.0 NVMe M.2 2230 SSD6,951$109Compare
Caldera SN-9352 Plus 2TB PCIe 4.0 NVMe M.2 2280 SSD9,508$239Compare
Altrix SN-7947 Max 2TB PCIe 4.0 NVMe M.2 2230 SSD7,866$159Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Altrix SN-2156 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/19831972 (accessed 2026-10-19).