Hardware Spec Index

Caldera SN-4990 Ultra 2TB PCIe 3.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4990-ULTRA · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index7,431 (SSDs scale)
Category rank#45,977
Street price$149
Power4 W (active)
Performance per dollar49.87
Released2019

Specifications

BrandCaldera
ModelCaldera SN-4990 Ultra
Capacity2 TB
Form factorM.2 2280
InterfacePCIe 3.0 x4, NVMe 1.4
Sequential read2,300 MB/s
Sequential write2,200 MB/s
Random 4K read600K IOPS
NAND3D QLC, 232-layer
CacheDRAM-less (HMB)
Endurance480 TBW (0.22 DWPD)
Warranty3 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-4990 Ultra 2TB PCIe 3.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/2339732 (accessed 2026-10-21).