Hardware Spec Index

Caldera SN-4956 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4956-XT · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index11,619 (SSDs scale)
Category rank#17,099
Street price$329
Power7 W (active)
Performance per dollar35.32
Released2022

Specifications

BrandCaldera
ModelCaldera SN-4956 XT
Capacity2 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,600 MB/s
Sequential write4,500 MB/s
Random 4K read1,030K IOPS
NAND3D TLC, 176-layer
CacheDDR4 DRAM, 2 GB
Endurance1,200 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
Novexa SN-5409 Ti 8TB PCIe 3.0 NVMe M.2 2280 SSD13,473$519Compare
Altrix SN-3656 Core 1TB PCIe 4.0 NVMe M.2 2280 SSD6,352$99Compare
Caldera SN-5634 Core 2TB PCIe 4.0 NVMe M.2 2280 SSD10,096$269Compare
Strivon SN-4531 Ti 8TB PCIe 3.0 NVMe M.2 2280 SSD14,099$599Compare
Novexa SN-9653 XT 2TB PCIe 3.0 NVMe M.2 2280 SSD8,109$179Compare
Novexa SN-6221 Edge 2TB PCIe 4.0 NVMe M.2 2280 SSD7,517$129Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-4956 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/2545256 (accessed 2026-10-26).