Hardware Spec Index

Caldera SN-2638 Ultra 1TB PCIe 4.0 NVMe M.2 2230 SSD

SSDs · Caldera · SKU SN2638-ULTRA · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index6,924 (SSDs scale)
Category rank#14,999
Street price$109
Power6 W (active)
Performance per dollar63.52
Released2020

Specifications

BrandCaldera
ModelCaldera SN-2638 Ultra
Capacity1 TB
Form factorM.2 2230
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,000 MB/s
Sequential write3,600 MB/s
Random 4K read770K IOPS
NAND3D TLC, 218-layer
CacheDRAM-less (HMB)
Endurance600 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

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Cite this page: Hardware Spec Index, “Caldera SN-2638 Ultra 1TB PCIe 4.0 NVMe M.2 2230 SSD”, https://vextor7.com/item/54554372 (accessed 2026-10-25).