Cisco WS-X4148-RJ enterprise networking (router/Catalyst switch/UCS families) Switch / Carrier Ethernet Line Card

The Cisco WS-X4148-RJ is a 48-port 10/100 auto-sensing Fast Ethernet line card for the Catalyst 4000/4500 modular switch chassis, terminating on RJ-45 copper. It slots into a Supervisor-Engine-equipped Catalyst 4000-series chassis to add high-density copper port capacity to a modular deployment, and was one of the standard high-port-count line cards Cisco offered for wiring-closet and data-centre installations built around the 4000 platform. Because the 4000/4500 chassis is modular, a card of this type is a routine spare when expanding port capacity, replacing a failed line card, or consolidating several smaller switches onto one chassis. Confirm compatibility with your specific Supervisor Engine and chassis backplane revision before ordering, since the original Catalyst 4000 and the later 4500 share a form factor but not full cross-compatibility on every card and supervisor combination. This is a refurbished unit, shipped worldwide from Tech-Star’s UK stock.