Hardware Spec Index

Caldera SN-9355 Ultra 4TB PCIe 5.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN9355-ULTRA · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index12,130 (SSDs scale)
Category rank#1,569
Street price$449
Power8 W (active)
Performance per dollar27.02
Released2025

Specifications

BrandCaldera
ModelCaldera SN-9355 Ultra
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 5.0 x4, NVMe 2.0
Sequential read12,600 MB/s
Sequential write11,100 MB/s
Random 4K read2,620K IOPS
NAND3D TLC, 176-layer
CacheLPDDR4 DRAM, 4 GB
Endurance2,400 TBW (0.33 DWPD)
Warranty5 years
HeatsinkIncluded (recommended for sustained loads)

Related guides

NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 5.0 ExplainedPCIe 4.0 vs PCIe 5.0

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Cite this page: Hardware Spec Index, “Caldera SN-9355 Ultra 4TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/263265 (accessed 2026-10-19).