Hardware Spec Index

Caldera SN-8646 XT 2TB PCIe 5.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN8646-XT · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index11,602 (SSDs scale)
Category rank#38,109
Street price$369
Power9 W (active)
Performance per dollar31.44
Released2024

Specifications

BrandCaldera
ModelCaldera SN-8646 XT
Capacity2 TB
Form factorM.2 2280
InterfacePCIe 5.0 x4, NVMe 2.0
Sequential read12,600 MB/s
Sequential write10,200 MB/s
Random 4K read1,790K IOPS
NAND3D TLC, 232-layer
CacheLPDDR4 DRAM, 2 GB
Endurance1,200 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

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Cite this page: Hardware Spec Index, “Caldera SN-8646 XT 2TB PCIe 5.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/8766286 (accessed 2026-10-22).