Hardware Spec Index

Caldera SN-4439 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4439-ULTRA · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index5,978 (SSDs scale)
Category rank#33,170
Street price$79
Power8 W (active)
Performance per dollar75.67
Released2023

Specifications

BrandCaldera
ModelCaldera SN-4439 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read7,400 MB/s
Sequential write5,600 MB/s
Random 4K read720K IOPS
NAND3D QLC, 218-layer
CacheDRAM-less (HMB)
Endurance200 TBW (0.18 DWPD)
Warranty3 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-6479 Plus 1TB SATA 2.5-inch SSD4,030$49Compare
Altrix SN-7689 Core 500GB PCIe 3.0 NVMe M.2 2280 SSD4,812$49Compare
Novexa SN-7078 Ti 1TB PCIe 4.0 NVMe M.2 2280 SSD8,298$149Compare
Altrix SN-6456 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD9,452$209Compare
Altrix SN-9820 SE 2TB PCIe 4.0 NVMe M.2 2280 SSD12,526$489Compare
Novexa SN-2656 Edge 1TB PCIe 3.0 NVMe M.2 2280 SSD6,563$109Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-4439 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/1543339 (accessed 2026-10-22).