Hardware Spec Index

Caldera SN-4638 Ti 1TB PCIe 3.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4638-TI · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index8,605 (SSDs scale)
Category rank#22,779
Street price$199
Power4 W (active)
Performance per dollar43.24
Released2019

Specifications

BrandCaldera
ModelCaldera SN-4638 Ti
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 3.0 x4, NVMe 1.4
Sequential read2,700 MB/s
Sequential write2,100 MB/s
Random 4K read510K IOPS
NAND3D TLC, 238-layer
CacheDDR4 DRAM, 1 GB
Endurance600 TBW (0.33 DWPD)
Warranty5 years
HeatsinkHeatsink edition available

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-4638 Ti 1TB PCIe 3.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/21872916 (accessed 2026-10-25).