Hardware Spec Index

Altrix SN-4640 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Altrix · SKU SN4640-ULTRA · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index4,976 (SSDs scale)
Category rank#33,638
Street price$49
Power8 W (active)
Performance per dollar101.55
Released2025

Specifications

BrandAltrix
ModelAltrix SN-4640 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,900 MB/s
Sequential write4,700 MB/s
Random 4K read740K IOPS
NAND3D QLC, 232-layer
CacheDRAM-less (HMB)
Endurance240 TBW (0.22 DWPD)
Warranty3 years
HeatsinkNone

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-4640 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/90287055 (accessed 2026-10-24).