Hardware Spec Index

Caldera SN-6855 XT 4TB PCIe 5.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN6855-XT · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index10,232 (SSDs scale)
Category rank#21,522
Street price$289
Power11 W (active)
Performance per dollar35.40
Released2024

Specifications

BrandCaldera
ModelCaldera SN-6855 XT
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 5.0 x4, NVMe 2.0
Sequential read10,000 MB/s
Sequential write7,900 MB/s
Random 4K read1,670K IOPS
NAND3D TLC, 176-layer
CacheLPDDR4 DRAM, 4 GB
Endurance2,400 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
Mirenta SN-3493 Ultra 2TB PCIe 4.0 NVMe M.2 2230 SSD8,668$189Compare
Novexa SN-8306 Ti 500GB PCIe 4.0 NVMe M.2 2280 SSD5,373$59Compare
Caldera SN-5196 Core 2TB PCIe 4.0 NVMe M.2 2280 SSD10,770$289Compare
Altrix SN-5164 Core 1TB PCIe 4.0 NVMe M.2 2280 SSD6,707$129Compare
Strivon SN-3239 Edge 500GB SATA 2.5-inch SSD4,344$49Compare
Altrix SN-9757 Pro 4TB PCIe 5.0 NVMe M.2 2280 SSD11,561$349Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-6855 XT 4TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/95546945 (accessed 2026-10-21).