Hardware Spec Index

Caldera SN-4377 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4377-ULTRA · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index6,233 (SSDs scale)
Category rank#9,296
Street price$79
Power6 W (active)
Performance per dollar78.90
Released2020

Specifications

BrandCaldera
ModelCaldera SN-4377 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,800 MB/s
Sequential write5,100 MB/s
Random 4K read810K IOPS
NAND3D TLC, 176-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-4377 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/7638276 (accessed 2026-10-25).