Hardware Spec Index

Caldera SN-6540 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN6540-ULTRA · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index5,858 (SSDs scale)
Category rank#40,997
Street price$79
Power6 W (active)
Performance per dollar74.15
Released2021

Specifications

BrandCaldera
ModelCaldera SN-6540 Ultra
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,800 MB/s
Sequential write4,200 MB/s
Random 4K read1,290K IOPS
NAND3D TLC, 218-layer
CacheDRAM-less (HMB)
Endurance300 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-6540 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/3399419 (accessed 2026-10-24).