Hardware Spec Index

Caldera SN-3556 XT 1TB PCIe 4.0 NVMe M.2 2230 SSD

SSDs · Caldera · SKU SN3556-XT · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index8,021 (SSDs scale)
Category rank#10,292
Street price$129
Power5 W (active)
Performance per dollar62.18
Released2022

Specifications

BrandCaldera
ModelCaldera SN-3556 XT
Capacity1 TB
Form factorM.2 2230
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,300 MB/s
Sequential write5,400 MB/s
Random 4K read700K IOPS
NAND3D QLC, 232-layer
CacheDRAM-less (HMB)
Endurance200 TBW (0.18 DWPD)
Warranty3 years
HeatsinkNone

Related guides

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

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Cite this page: Hardware Spec Index, “Caldera SN-3556 XT 1TB PCIe 4.0 NVMe M.2 2230 SSD”, https://vextor7.com/item/58776414 (accessed 2026-10-20).