Hardware Spec Index

Caldera SN-6408 Ultra 4TB PCIe 3.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN6408-ULTRA · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index14,303 (SSDs scale)
Category rank#20,722
Street price$499
Power6 W (active)
Performance per dollar28.66
Released2019

Specifications

BrandCaldera
ModelCaldera SN-6408 Ultra
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 3.0 x4, NVMe 1.4
Sequential read2,600 MB/s
Sequential write2,400 MB/s
Random 4K read480K IOPS
NAND3D TLC, 218-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 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
Novexa SN-7067 XT 8TB PCIe 4.0 NVMe M.2 2280 SSD14,741$599Compare
Altrix SN-6474 Max 500GB SATA 2.5-inch SSD3,943$49Compare
Mirenta SN-4663 Pro 1TB PCIe 4.0 NVMe M.2 2280 SSD6,395$99Compare
Mirenta SN-6075 Plus 2TB PCIe 4.0 NVMe M.2 2280 SSD10,741$249Compare
Altrix SN-1485 Core 2TB PCIe 4.0 NVMe M.2 2280 SSD10,086$289Compare
Caldera SN-4822 Max 1TB PCIe 4.0 NVMe M.2 2280 SSD8,853$199Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-6408 Ultra 4TB PCIe 3.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/8588772 (accessed 2026-10-23).