Copper plated aluminum conductors make a poor excuse for a communications cable. Aluminum is too brittle to be forged like AWG24. I couldn't find any performance ratings for aluminum under 18 AWG; it probably doesn't match the code under any circumstances. This paper-thin aluminum will break due to work hardening after minor tampering/termination. The UL listing for this cable has been faked; This is a fake from China. These copper-plated aluminum pairs didn't even come close to meeting Cat5e, Cat5, or even Cat3 specifications. It could not transmit 10MHz HPNA signals over 1000 feet. It barely passed the 3MHz HSDL over a 1000ft cable. HPNA and HDSL over 1000 feet of copper wire typically have very high channel budgets; The performance of this CCA cable is significantly inferior to the original copper cables. Conventional Ethernet has a spectrum of around 30 MHz; My guess is that it will perform even worse than HPNA and HSDL on this CCA cable. It can carry modulating signals below 20kHz, but the resistance of this cable is very high (I've observed 120 ohms on a pair). It may not be able to power a traditional landline phone. Also, this cable does not contain "Icky Pick" gel. The gel is indispensable for underground cables. One cut and the gelless underground cable will burn. Direct burial real copper cable can be purchased for about twice the price of this cable. Avoid copper clad aluminum cables, they will never meet Cat5 specifications.