Hardware Spec Index

Novexa SN-2491 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN2491-ULTRA · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index10,460 (SSDs scale)
Category rank#8,857
Street price$289
Power8 W (active)
Performance per dollar36.19
Released2020

Specifications

BrandNovexa
ModelNovexa SN-2491 Ultra
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,200 MB/s
Sequential write4,200 MB/s
Random 4K read720K IOPS
NAND3D TLC, 218-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
Novexa SN-8127 Ti 8TB PCIe 5.0 NVMe M.2 2280 SSD13,284$569Compare
Mirenta SN-8683 Ti 4TB PCIe 5.0 NVMe M.2 2280 SSD12,254$379Compare
Caldera SN-4722 Max 2TB PCIe 4.0 NVMe M.2 2280 SSD6,428$89Compare
Altrix SN-1595 Ti 4TB PCIe 5.0 NVMe M.2 2280 SSD13,526$589Compare
Novexa SN-5879 Ultra 2TB PCIe 4.0 NVMe M.2 2230 SSD8,058$169Compare
Caldera SN-4786 Plus 2TB PCIe 4.0 NVMe M.2 2280 SSD12,505$399Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Novexa SN-2491 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/6606731 (accessed 2026-10-24).