Hardware Spec Index

Caldera SN-4991 Edge 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN4991-EDGE · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index9,284 (SSDs scale)
Category rank#19,072
Street price$189
Power7 W (active)
Performance per dollar49.12
Released2021

Specifications

BrandCaldera
ModelCaldera SN-4991 Edge
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,500 MB/s
Sequential write5,300 MB/s
Random 4K read1,010K IOPS
NAND3D TLC, 232-layer
CacheDDR4 DRAM, 1 GB
Endurance600 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
Altrix SN-1006 Edge 1TB PCIe 4.0 NVMe M.2 2280 SSD5,993$109Compare
Caldera SN-4662 Plus 2TB PCIe 5.0 NVMe M.2 2280 SSD12,165$439Compare
Strivon SN-2976 Edge 1TB SATA 2.5-inch SSD3,811$29Compare
Mirenta SN-1328 Plus 1TB PCIe 4.0 NVMe M.2 2280 SSD7,147$129Compare
Novexa SN-4978 Ti 1TB PCIe 4.0 NVMe M.2 2280 SSD5,352$79Compare
Mirenta SN-2145 Edge 1TB SATA 2.5-inch SSD3,508$29Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-4991 Edge 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/69721387 (accessed 2026-10-20).