Cisco WS-X4448-GB-SFP 48 SFP Port 4500 Catalyst Switch GIGABIT Module
Cisco WS-X4448-GB-SFP. Cisco Catalyst 4500 Series WS-X4448-GB-SFP 48-port 1000BASE-X small form-factor pluggable (SFP) line card is a Gigabit Ethernet line card with LC connectors for SFP-based optics.