Hardware Spec Index

Caldera SN-6640 Edge 1TB SATA 2.5-inch SSD

SSDs · Caldera · SKU SN6640-EDGE · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index4,168 (SSDs scale)
Category rank#18,808
Street price$39
Power3 W (active)
Performance per dollar106.87
Released2025

Specifications

BrandCaldera
ModelCaldera SN-6640 Edge
Capacity1 TB
Form factor2.5" SATA (7 mm)
InterfaceSATA 6 Gb/s (AHCI)
Sequential read550 MB/s
Sequential write520 MB/s
Random 4K read98K IOPS
NAND3D QLC, 176-layer
CacheDRAM-less (SLC cache)
Endurance240 TBW (0.22 DWPD)
Warranty3 years
HeatsinkHeatsink edition available

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Cite this page: Hardware Spec Index, “Caldera SN-6640 Edge 1TB SATA 2.5-inch SSD”, https://vextor7.com/item/87632793 (accessed 2026-10-24).