Ultra Low - loss N Male Cable - It is ideal with an 50-Ohm impedance and work for any 50 Ohm RF system. The signal loss of this n-male to male cable is less than 1.26db on 1800MHz. Swr is less than 1.15. It could support better signal transfer with minimum signal loss over large distances and higher frequency use. This KMR240 N cable is LMR240 equivalent (if youre familiar with those). Prevent Pulling Out Connector - The connection of N male to N male cable is length up to to 2.2" heat shrinking tube built with an inner adhesive. Compared with other shorter without glue cable, this would provide a heavy duty and professionally connection between cable and adapters. Our N male to male cable is made solidly for prevent falling apart. It is support to screw easily and snugly.