Hardware Spec Index

Caldera SN-4540 Ultra 1TB PCIe 3.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4540-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index8,036 (SSDs scale)
Category rank#26,509
Street price$189
Power4 W (active)
Performance per dollar42.52
Released2019

Specifications

BrandCaldera
ModelCaldera SN-4540 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 3.0 x4, NVMe 1.4
Sequential read2,100 MB/s
Sequential write1,500 MB/s
Random 4K read590K IOPS
NAND3D TLC, 238-layer
CacheDRAM-less (HMB)
Endurance600 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

Similar SSDs

ModelBenchmarkPriceCompare
Altrix SN-6476 Ti 500GB PCIe 4.0 NVMe M.2 2230 SSD6,019$99Compare
Novexa SN-9186 Prime 1TB PCIe 4.0 NVMe M.2 2280 SSD6,875$129Compare
Novexa SN-5937 Ultra 1TB PCIe 3.0 NVMe M.2 2280 SSD8,731$209Compare
Caldera SN-5178 Ti 1TB PCIe 4.0 NVMe M.2 2280 SSD6,623$99Compare
Altrix SN-5745 Ultra 2TB PCIe 4.0 NVMe M.2 2230 SSD9,949$239Compare
Caldera SN-1446 Ultra 2TB PCIe 4.0 NVMe M.2 2280 SSD8,231$189Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-4540 Ultra 1TB PCIe 3.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/7516221 (accessed 2026-10-19).