Hardware Spec Index

Caldera SN-9421 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN9421-PLUS · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index14,900 (SSDs scale)
Category rank#5,584
Street price$599
Power5 W (active)
Performance per dollar24.87
Released2021

Specifications

BrandCaldera
ModelCaldera SN-9421 Plus
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,600 MB/s
Sequential write5,100 MB/s
Random 4K read840K IOPS
NAND3D TLC, 232-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 TBW (0.33 DWPD)
Warranty5 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

Similar SSDs

ModelBenchmarkPriceCompare
Caldera SN-2251 Edge 1TB PCIe 4.0 NVMe M.2 2280 SSD7,226$129Compare
Mirenta SN-6444 Pro 2TB PCIe 4.0 NVMe M.2 2280 SSD8,456$209Compare
Altrix SN-9233 Pro 1TB PCIe 4.0 NVMe M.2 2280 SSD7,781$179Compare
Mirenta SN-7713 Prime 2TB PCIe 5.0 NVMe M.2 2280 SSD11,692$309Compare
Strivon SN-6593 Ultra 4TB PCIe 5.0 NVMe M.2 2280 SSD11,184$339Compare
Caldera SN-8752 Plus 500GB SATA 2.5-inch SSD3,995$39Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-9421 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/18655607 (accessed 2026-10-19).