Hardware Spec Index

Caldera SN-1821 Pro 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN1821-PRO · Released 2024 · Updated 2026-10-24

Key facts

Benchmark index6,154 (SSDs scale)
Category rank#1,244
Street price$79
Power5 W (active)
Performance per dollar77.90
Released2024

Specifications

BrandCaldera
ModelCaldera SN-1821 Pro
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,900 MB/s
Sequential write3,600 MB/s
Random 4K read1,210K IOPS
NAND3D QLC, 218-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
Strivon SN-5066 Edge 500GB SATA 2.5-inch SSD3,980$39Compare
Strivon SN-3016 SE 8TB PCIe 5.0 NVMe M.2 2280 SSD13,749$499Compare
Novexa SN-2005 Pro 1TB PCIe 4.0 NVMe M.2 2280 SSD7,651$169Compare
Altrix SN-5766 Prime 2TB PCIe 4.0 NVMe M.2 2280 SSD11,251$279Compare
Caldera SN-7388 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD9,857$259Compare
Altrix SN-6812 Plus 2TB PCIe 3.0 NVMe M.2 2280 SSD11,243$279Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-1821 Pro 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/32326889 (accessed 2026-10-24).