Cellphone-Mate CM240 White 40 Ft Ultra-Low-Loss Coaxial Coax Cable CM004-40-FN Cellphone-Mate CM240 White 40 Ft Ultra-Low-Loss Coaxial Coax Cable (CM004-40-FN). For indoor / outdoor use. CM240 series coaxial cables are thinner, lighter, and much easier to organize. Connects fiber glass antenna or dome antenna to amplifier, splitter or tap. Ultra Low Loss. FME-Female / N-Male Connectors on both ends.