Before revision: Class F: Up to 600 MHz using Category 7 cable and connectors Class FA: Up to 1000 MHz using Category 7A cable and connectors (Amendments 1 and 2 to ISO/IEC 11801, 2nd Ed.)
After revision: 1 GHz ()Class F: Up to 600 MHz using Category 7 cable and connectors Class FA: Up to 1000 MHz using Category 7A cable and connectors (Amendments 1 and 2 to ISO/IEC 11801, 2nd Ed.)