Hardware Spec Index

Caldera SN-1556 XT 8TB PCIe 3.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN1556-XT · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index13,177 (SSDs scale)
Category rank#24,757
Street price$519
Power6 W (active)
Performance per dollar25.39
Released2019

Specifications

BrandCaldera
ModelCaldera SN-1556 XT
Capacity8 TB
Form factorM.2 2280
InterfacePCIe 3.0 x4, NVMe 1.4
Sequential read2,900 MB/s
Sequential write2,500 MB/s
Random 4K read420K IOPS
NAND3D TLC, 176-layer
CacheDDR4 DRAM, 8 GB
Endurance4,800 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

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Cite this page: Hardware Spec Index, “Caldera SN-1556 XT 8TB PCIe 3.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/650063 (accessed 2026-10-21).