Hardware Spec Index

Caldera SN-1558 XT 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN1558-XT · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index5,768 (SSDs scale)
Category rank#14,500
Street price$89
Power7 W (active)
Performance per dollar64.81
Released2026

Specifications

BrandCaldera
ModelCaldera SN-1558 XT
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,700 MB/s
Sequential write4,100 MB/s
Random 4K read960K IOPS
NAND3D TLC, 176-layer
CacheDRAM-less (HMB)
Endurance300 TBW (0.33 DWPD)
Warranty5 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-1558 XT 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/289908 (accessed 2026-10-20).