Hardware Spec Index

Caldera SN-4821 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4821-XT · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index5,752 (SSDs scale)
Category rank#23,614
Street price$79
Power7 W (active)
Performance per dollar72.81
Released2021

Specifications

BrandCaldera
ModelCaldera SN-4821 XT
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,600 MB/s
Sequential write5,900 MB/s
Random 4K read1,100K IOPS
NAND3D QLC, 232-layer
CacheDRAM-less (HMB)
Endurance360 TBW (0.33 DWPD)
Warranty3 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-4821 XT 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/98691869 (accessed 2026-10-23).