Hardware Spec Index

Caldera SN-6851 Ultra 1TB PCIe 3.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN6851-ULTRA · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index6,323 (SSDs scale)
Category rank#39,802
Street price$99
Power5 W (active)
Performance per dollar63.87
Released2019

Specifications

BrandCaldera
ModelCaldera SN-6851 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 3.0 x4, NVMe 1.4
Sequential read2,100 MB/s
Sequential write1,800 MB/s
Random 4K read510K IOPS
NAND3D TLC, 238-layer
CacheDRAM-less (HMB)
Endurance600 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-6851 Ultra 1TB PCIe 3.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/35302142 (accessed 2026-10-25).