The Simply45 S45-1550P is PROSeries pass through shielded modular plug for Cat5e STP (internal ground) and includes Cap45.
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.