Simply45® is the industry-leading brand for RJ45 modular plug innovation and performance solutions. Our S45-1601P is the same as our S45-1600P except is packaged in a convenient 50-piece plastic clamshell. The Simply45® ProSeries introduces the exclusive Cap45® (PATENT 10,811,831 B1). Cap45® is an isolation cap/bar that snaps onto the front of the pass-through RJ45 plug after termination, covering the exposed wire ends. Cap45® prevents electrical shorting in the RJ45 socket due to improperly trimmed wires or in device sockets that may not be 100% compliant. With Cap45®, any electrical risks associated with exposed wire ends are now eliminated completely. Cap45® is a MUST-HAVE for all pass-through RJ45 modular plugs used in commercial and certified system terminations.