An Honest Comparison
Copper-clad aluminum (CCA) is lighter and cheaper, but carries caveats:
- CCA has ~2.5× the resistance of copper → more voltage drop, more heat
- CCA is fine for short patch and low-power runs
- Pure copper is mandatory for PoE, long runs, and structured cabling
Bottom Line
Save with CCA where code allows; invest in copper where performance and safety matter. We stock both and will tell you straight which to use.
