Hardware Spec Index

Altrix SN-4939 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN4939-XT · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index6,572 (SSDs scale)
Category rank#30,905
Street price$109
Power8 W (active)
Performance per dollar60.29
Released2020

Specifications

BrandAltrix
ModelAltrix SN-4939 XT
Capacity2 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,700 MB/s
Sequential write4,700 MB/s
Random 4K read950K IOPS
NAND3D QLC, 218-layer
CacheDRAM-less (HMB)
Endurance720 TBW (0.33 DWPD)
Warranty3 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-4939 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/16767017 (accessed 2026-10-25).