Overview The Black Box FMT634-R3 is an unshielded CAT6 keystone jack designed to support gigabit network performance with data frequencies up to 250 MHz. It is ideal for installers who need a reliable and efficient solution for terminating network cables in patch panels, wallplates, or surface-mount boxes. This jack ensures smooth file transfers, VoIP calls, and video streaming in busy office or campus environments. Key features Supports data frequencies up to 250 MHz, enabling stable gigabit network speeds. Backward compatible with CAT5e, CAT5, and CAT3 cabling, allowing gradual network upgrades. Accepts both T568A and T568B wiring schemes, providing flexibility to match existing installations without re-termination. Keystone form factor allows quick and easy snap-in installation into standard openings. Phosphor bronze IDC contacts with tin plating resist wear from repeated punchdowns, ensuring long-term reliability. 50-micron gold-plated RJ-45 contacts maintain consistent connectivity even after many insertions. 110 punchdown termination speeds up installation while securing wires firmly. Green housing color matches Black Box GigaStation2 wallplates and surface-mount housings for a clean, professional appearance. Key specs Category: CAT6 unshielded keystone jack Frequency support: up to 250 MHz Compatibility: backward compatible with CAT5e, CAT5, and CAT3 Wiring schemes supported: T568A and T568B Contacts: phosphor bronze IDC with tin plating; RJ-45 contacts with 50-micron gold plating Termination type: 110 punchdown Form factor: keystone jack Housing color: green Connectivity and compatibility This keystone jack fits any standard keystone opening, making it suitable for a variety of network hardware such as patch panels, wallplates, and surface-mount boxes. Its support for both T568A and T568B wiring schemes ensures it integrates seamlessly into existing network layouts without requiring adapters or rewiring. The jack’s backward compatibility with older cable categories allows for flexible upgrades in mixed environments. Installation and setup The 110 punchdown termination simplifies the wiring process, reducing installation time while securing cables firmly to maintain signal integrity. The keystone form factor enables quick snap-in mounting, which helps installers complete projects efficiently. The durable contacts withstand multiple terminations, making this jack a practical choice for environments where network changes or expansions are frequent. Ideal uses and environments This keystone jack is well suited for office networks, educational campuses, and data centers where reliable gigabit connectivity is essential. It works effectively in both new installations and incremental upgrades, supporting smooth data transfer and communication across busy network segments. The color-matched housing also helps maintain a neat and professional look in visible installations.