Hardware Spec Index

Caldera SN-3940 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN3940-ULTRA · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index13,654 (SSDs scale)
Category rank#30,699
Street price$449
Power5 W (active)
Performance per dollar30.41
Released2023

Specifications

BrandCaldera
ModelCaldera SN-3940 Ultra
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,200 MB/s
Sequential write6,000 MB/s
Random 4K read1,390K IOPS
NAND3D TLC, 232-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
Mirenta SN-9143 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD14,900$599Compare
Altrix SN-8527 Ti 1TB PCIe 4.0 NVMe M.2 2280 SSD5,781$79Compare
Novexa SN-9123 Core 8TB PCIe 5.0 NVMe M.2 2280 SSD12,384$409Compare
Caldera SN-6574 Ultra 8TB PCIe 4.0 NVMe M.2 2280 SSD14,320$559Compare
Strivon SN-3465 Ti 1TB PCIe 4.0 NVMe M.2 2280 SSD7,038$109Compare
Caldera SN-7254 Max 4TB PCIe 5.0 NVMe M.2 2280 SSD12,803$439Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-3940 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/5961350 (accessed 2026-10-19).