5555140-2 is a right-angle shielded modular jack designed for Cat 3 networking applications. It features 6 positions with 4 contacts loaded, a metal shield providing EMI/RFI protection, and dual grounding options for both panel and PCB connections. The jack is mounted through-hole on the PCB with a height of 12.7 mm, a tail length of 3.81 mm, and includes panel stops for secure retention. This configuration is commonly referred to as RJ14 and is suitable for voice, data, and networking applications in telecommunications equipment, routers, switches, and business communications devices. The shielded design and flexible grounding options make it ideal for environments requiring electromagnetic interference protection and reliable signal integrity.