Hardware Spec Index

Caldera SN-6544 Ultra 2TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN6544-ULTRA · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index8,331 (SSDs scale)
Category rank#26,568
Street price$209
Power8 W (active)
Performance per dollar39.86
Released2025

Specifications

BrandCaldera
ModelCaldera SN-6544 Ultra
Capacity2 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,100 MB/s
Sequential write5,400 MB/s
Random 4K read1,200K IOPS
NAND3D TLC, 218-layer
CacheDDR4 DRAM, 2 GB
Endurance1,200 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-6544 Ultra 2TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/9564295 (accessed 2026-10-23).