Cisco WS-X4248-FE-SFP is a 48-port Fast Ethernet line card designed for the Cisco Catalyst 4500 Series modular switches. It provides 48 SFP-based 10/100 Mbps Fast Ethernet ports, allowing flexible fiber connectivity for enterprise access and aggregation networks. This module is commonly used in environments requiring high port density with fiber-based connectivity, such as campus networks and telecom deployments.

? KEY FEATURES

• 48 × Fast Ethernet ports (SFP-based)
• Supports fiber SFP transceivers (100Base-FX and compatible)
• High-density modular line card
• Designed for Catalyst 4500 chassis
• Hot-swappable module
• Flexible optical interface options
• Enterprise-grade reliability

⚙️ TECHNICAL SPECIFICATIONS 

? Hardware Platform

• Series: Cisco Catalyst 4500
• Model: WS-X4248-FE-SFP
• Type: Fast Ethernet line card
• Form factor: Modular (chassis slot)

? Interfaces

• 48 × 100Base-X Fast Ethernet SFP ports
• SFP-based connectivity (fiber-dependent on transceiver type)

⚡ Performance

• Line-rate Fast Ethernet switching
• Integrated with Catalyst 4500 switching fabric
• Performance dependent on supervisor engine and chassis

? Features

• VLAN support (802.1Q)
• QoS prioritization
• Access Control Lists (ACLs)
• Layer 2 switching (Layer 3 via supervisor engine)
• SNMP and CLI management via chassis supervisor