Hardware Spec Index

Caldera SN-9955 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN9955-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index7,220 (SSDs scale)
Category rank#43,340
Street price$149
Power7 W (active)
Performance per dollar48.46
Released2021

Specifications

BrandCaldera
ModelCaldera SN-9955 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,200 MB/s
Sequential write4,600 MB/s
Random 4K read820K 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

Similar SSDs

ModelBenchmarkPriceCompare
Mirenta SN-1393 Ultra 2TB PCIe 3.0 NVMe M.2 2280 SSD10,752$279Compare
Strivon SN-3422 Core 4TB PCIe 4.0 NVMe M.2 2280 SSD13,278$499Compare
Strivon SN-3641 Plus 4TB PCIe 4.0 NVMe M.2 2280 SSD10,287$239Compare
Strivon SN-9773 Prime 2TB PCIe 4.0 NVMe M.2 2280 SSD13,370$449Compare
Mirenta SN-7038 Ti 4TB PCIe 4.0 NVMe M.2 2280 SSD12,299$389Compare
Altrix SN-9837 Core 500GB PCIe 4.0 NVMe M.2 2280 SSD6,380$99Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-9955 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/11635870 (accessed 2026-10-19).