(Formerly JL686A#ABA) The Instant On 1930 48G 4SFP+ PoE switch is a high-performance, smart-managed Layer 2+ gigabit Ethernet switch designed for small and medium businesses with fast set-up, easy management, advanced features for high performance, and built-in security. Features 370W of Class4 PoE on 48 ports to power access points, cameras, IP phones and other IoT devices. The B model offers all the same features and benefits as the A models, in addition to improved acoustic performance | EASY SET UP AND MANAGEMENT: Set up, manage, and monitor your Instant On switches and access points from any device using the Instant On mobile app or web browser -no recurring cost, subscription or license required. Guided step-by-step instructions to install devices and get your network up and running quickly -no technical expertise required. Alternative integrated traditional full local web interface for advanced configuration with static routing, ACLs, SNMP | CONFIGURATION: Rack-width design with rack mounting ears. Or place desktop or flat surface. Ports and LEDs facing the front | PORTS: Features 52 active ports | 48x gigabit 10/100/1000/1000 with 4x 1G/10G SFP+ uplink ports | 10G capable copper RJ45 ports and fiber-capable SFP+ slots | Power over Ethernet: Class 4 PoE on 48 ports | PoE power budget 370 Watts | WARRANTY & SUPPORT: Manage your network with confidence thanks to an industry-leading limited lifetime warranty and support