Hardware Spec Index

Caldera SN-1681 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN1681-ULTRA · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index9,600 (SSDs scale)
Category rank#3,743
Street price$269
Power7 W (active)
Performance per dollar35.69
Released2021

Specifications

BrandCaldera
ModelCaldera SN-1681 Ultra
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,800 MB/s
Sequential write5,600 MB/s
Random 4K read1,260K IOPS
NAND3D TLC, 238-layer
CacheDDR4 DRAM, 1 GB
Endurance600 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
Altrix SN-6691 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD6,352$109Compare
Strivon SN-6795 Ti 1TB PCIe 4.0 NVMe M.2 2280 SSD5,399$69Compare
Altrix SN-4242 Max 2TB PCIe 4.0 NVMe M.2 2280 SSD8,968$209Compare
Strivon SN-6767 Pro 1TB SATA 2.5-inch SSD3,532$29Compare
Mirenta SN-9444 Edge 1TB SATA 2.5-inch SSD3,266$39Compare
Strivon SN-8956 Prime 8TB PCIe 4.0 NVMe M.2 2280 SSD12,851$499Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-1681 Ultra 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/46978732 (accessed 2026-10-22).