The Molex 0424108314 is a vertical-mount, unshielded modular jack from the 42410 series, wired as 8p8c — the standard RJ45 Ethernet pinout. It sits on the board as a single-port, single-row through-hole component with board locks that anchor it during wave solder and hold against the plug insertion force.
Board Lock and Through-Hole Mounting
The board lock feature is a pair of metal posts that press into plated through-holes alongside the signal pins. On a vertical jack like this, the lock takes the shear load from the RJ45 plug latch during mating and un-mating — without it, the solder joints on the eight signal pins carry all the mechanical stress and eventually crack. The through-hole termination gives a stronger mechanical anchor than an SMT version would, which matters when the jack is on a board edge where the cable gets yanked.
Gold Plating and Contact Reliability
The gold layer prevents oxidation on the contact surface; tin-plated contacts would develop a resistive oxide layer after a few dozen insertions and start dropping packets at the physical layer.
This is an active-production item, quoted to order.