Hardware Spec Index

Caldera SN-7778 Ultra 2TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN7778-ULTRA · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index7,228 (SSDs scale)
Category rank#4,247
Street price$149
Power5 W (active)
Performance per dollar48.51
Released2021

Specifications

BrandCaldera
ModelCaldera SN-7778 Ultra
Capacity2 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,400 MB/s
Sequential write6,200 MB/s
Random 4K read1,300K IOPS
NAND3D QLC, 176-layer
CacheDRAM-less (HMB)
Endurance400 TBW (0.18 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-7778 Ultra 2TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/32631855 (accessed 2026-10-25).