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Contact SupplierThat is a recipe for disaster. The term OFC (oxygen-free copper) has become abused and is used synonymously with solid or all-copper conductors. ... Everyone in the industry uses “OFC” for a piece of wire that is not copper-clad aluminum (CCA). The alternative is CCA conductors.
CCA cables can never suffice for their copper counterparts. ... Aluminum and Steel have a much higher resistance than that of the copper. Thus the use of CCA wire in Cat5e patch cables and CAT6 patch cables will lead to large amounts of data loss.