Hardware Spec Index

Caldera SN-4991 Ti 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4991-TI · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index11,200 (SSDs scale)
Category rank#15,615
Street price$329
Power7 W (active)
Performance per dollar34.04
Released2020

Specifications

BrandCaldera
ModelCaldera SN-4991 Ti
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,600 MB/s
Sequential write6,100 MB/s
Random 4K read1,260K 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-7981 Max 500GB SATA 2.5-inch SSD3,302$29Compare
Altrix SN-3304 Edge 2TB PCIe 4.0 NVMe M.2 2280 SSD11,401$319Compare
Altrix SN-6080 Max 1TB PCIe 4.0 NVMe M.2 2280 SSD7,281$149Compare
Mirenta SN-1842 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD13,981$519Compare
Novexa SN-9299 Plus 1TB PCIe 4.0 NVMe M.2 2280 SSD8,325$179Compare
Novexa SN-1483 Edge 2TB PCIe 4.0 NVMe M.2 2280 SSD9,575$259Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-4991 Ti 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/31491891 (accessed 2026-10-25).