Hardware Spec Index

Caldera SN-9477 Prime 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN9477-PRIME · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index5,774 (SSDs scale)
Category rank#24,816
Street price$79
Power8 W (active)
Performance per dollar73.09
Released2023

Specifications

BrandCaldera
ModelCaldera SN-9477 Prime
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read4,900 MB/s
Sequential write3,200 MB/s
Random 4K read850K IOPS
NAND3D QLC, 176-layer
CacheDRAM-less (HMB)
Endurance180 TBW (0.33 DWPD)
Warranty3 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
Altrix SN-1827 Core 500GB PCIe 4.0 NVMe M.2 2280 SSD6,120$89Compare
Caldera SN-5387 Ultra 4TB PCIe 3.0 NVMe M.2 2280 SSD13,920$449Compare
Altrix SN-4955 Max 2TB PCIe 4.0 NVMe M.2 2230 SSD12,517$379Compare
Caldera SN-1056 Pro 500GB SATA 2.5-inch SSD4,278$49Compare
Altrix SN-7840 Ultra 8TB PCIe 5.0 NVMe M.2 2280 SSD12,826$479Compare
Novexa SN-7334 Plus 8TB PCIe 5.0 NVMe M.2 2280 SSD11,382$359Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-9477 Prime 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/1669665 (accessed 2026-10-24).