Hardware Spec Index

Caldera SN-2556 Ultra 8TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN2556-ULTRA · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index14,452 (SSDs scale)
Category rank#42,009
Street price$509
Power7 W (active)
Performance per dollar28.39
Released2020

Specifications

BrandCaldera
ModelCaldera SN-2556 Ultra
Capacity8 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,400 MB/s
Sequential write4,800 MB/s
Random 4K read810K IOPS
NAND3D TLC, 232-layer
CacheDDR4 DRAM, 8 GB
Endurance4,800 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

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Cite this page: Hardware Spec Index, “Caldera SN-2556 Ultra 8TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/91492255 (accessed 2026-10-23).