The 6 GHz upper frequency limit covers common bands including 2.4 GHz and 5 GHz ISM, cellular, and GPS L-band; above 6 GHz the VSWR rises beyond the connector's design window. The 335 V voltage rating is adequate for the RF power levels these connectors typically carry — think transmitter outputs up to a few watts — but not for high-voltage pulsed applications. The 500 mating cycles rating tells you this connector can handle repeated field disconnects without the gold-over-nickel centre contact wearing through to the base metal. For a connector that may be swapped during equipment servicing or antenna repositioning, that is a practical durability margin.
Cable Termination and Environmental Reach
Using a different cable group will shift the impedance and may not crimp securely.