Hardware Spec Index

Caldera SN-1903 Ultra 8TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN1903-ULTRA · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index14,259 (SSDs scale)
Category rank#7,934
Street price$549
Power6 W (active)
Performance per dollar25.97
Released2020

Specifications

BrandCaldera
ModelCaldera SN-1903 Ultra
Capacity8 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,100 MB/s
Sequential write4,700 MB/s
Random 4K read980K 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-1903 Ultra 8TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/21455262 (accessed 2026-10-26).