Hardware Spec Index

Caldera SN-7256 XT 4TB PCIe 3.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN7256-XT · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index10,083 (SSDs scale)
Category rank#6,752
Street price$249
Power6 W (active)
Performance per dollar40.49
Released2019

Specifications

BrandCaldera
ModelCaldera SN-7256 XT
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 3.0 x4, NVMe 1.4
Sequential read3,200 MB/s
Sequential write2,800 MB/s
Random 4K read500K IOPS
NAND3D TLC, 218-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 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

Similar SSDs

ModelBenchmarkPriceCompare
Caldera SN-4409 Edge 4TB PCIe 5.0 NVMe M.2 2280 SSD14,848$599Compare
Mirenta SN-6351 Ti 8TB PCIe 5.0 NVMe M.2 2280 SSD13,050$519Compare
Caldera SN-9267 Core 500GB PCIe 3.0 NVMe M.2 2280 SSD4,746$49Compare
Caldera SN-3453 Pro 4TB PCIe 4.0 NVMe M.2 2280 SSD11,220$289Compare
Mirenta SN-4475 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD4,714$49Compare
Caldera SN-8570 Pro 2TB PCIe 4.0 NVMe M.2 2280 SSD9,051$199Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-7256 XT 4TB PCIe 3.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/11675223 (accessed 2026-10-19).