Hardware Spec Index

Caldera SN-6440 Plus 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN6440-PLUS · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index6,330 (SSDs scale)
Category rank#48,831
Street price$89
Power7 W (active)
Performance per dollar71.12
Released2024

Specifications

BrandCaldera
ModelCaldera SN-6440 Plus
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,100 MB/s
Sequential write4,800 MB/s
Random 4K read730K IOPS
NAND3D TLC, 218-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-6440 Plus 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/12037331 (accessed 2026-10-22).