Hardware Spec Index

Caldera SN-6446 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN6446-XT · Released 2026 · Updated 2026-10-21

Key facts

Benchmark index14,253 (SSDs scale)
Category rank#22,935
Street price$539
Power9 W (active)
Performance per dollar26.44
Released2026

Specifications

BrandCaldera
ModelCaldera SN-6446 XT
Capacity8 TB
Form factorM.2 2280
InterfacePCIe 5.0 x4, NVMe 2.0
Sequential read10,100 MB/s
Sequential write9,500 MB/s
Random 4K read2,770K IOPS
NAND3D TLC, 176-layer
CacheLPDDR4 DRAM, 8 GB
Endurance4,800 TBW (0.33 DWPD)
Warranty5 years
HeatsinkIncluded (recommended for sustained loads)

Related guides

NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 5.0 ExplainedPCIe 4.0 vs PCIe 5.0

Similar SSDs

ModelBenchmarkPriceCompare
Altrix SN-4975 Ti 1TB SATA 2.5-inch SSD4,035$49Compare
Altrix SN-5700 Edge 2TB PCIe 3.0 NVMe M.2 2280 SSD9,062$189Compare
Novexa SN-1489 XT 1TB SATA 2.5-inch SSD4,307$39Compare
Mirenta SN-2352 SE 1TB PCIe 4.0 NVMe M.2 2280 SSD5,690$69Compare
Strivon SN-5399 Prime 8TB PCIe 4.0 NVMe M.2 2280 SSD14,900$599Compare
Novexa SN-2568 XT 2TB PCIe 4.0 NVMe M.2 2230 SSD8,043$159Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-6446 XT 8TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/85530563 (accessed 2026-10-21).