The Cisco WS‑X4748‑UPOE+E is a 48‑port RJ‑45 UPOE line card designed for the Catalyst 4507R+E chassis, delivering high‑performance switching with enhanced power capabilities for demanding enterprise networks. It supports Universal Power over Ethernet to power devices like phones, cameras, and access points directly through the network. A reliable choice for expanding or upgrading your Catalyst 4500‑series deployment.