The WS-X4448-GB-SFP is a 48-port Gigabit Ethernet switching module for the Cisco Catalyst 4500 Series modular switch platform, providing 48 ports of 1000BASE-X connectivity with SFP transceivers. The Catalyst 4500E Series is a widely deployed modular platform for campus access and distribution deployments, and its 1000BASE-X SFP line cards allow customers to intermix intrabuilding multimode fiber (MMF) connections and long-distance single-mode connections simply by changing the SFP type. This card includes fiber interfaces optimized for enterprise, commercial, and service provider Ethernet networks, offering flexibility to mix and match SFP optics across ports. It is supported on the Catalyst 4500E Series alongside supervisor engines such as the Supervisor 8-E and 8L-E for wired and wireless convergence deployments.
Key Features:
- 48 ports of 1000BASE-X Gigabit Ethernet, SFP-based, hot-swap capable, no PoE
- Supports mixing and matching of 1000BASE-X SFP optics on the same line card
- IEEE 802.3x flow control support
- 8-to-1 oversubscription ratio (per Cisco Catalyst 4500 line card specifications)
- Hot-swappable line card design for modular Catalyst 4500 chassis
Technical Specifications:
- Manufacturer Part Number: WS-X4448-GB-SFP
- Manufacturer: Cisco Systems, Inc.
- Port Count: 48
- Interface Type: 1000BASE-X (SFP, transceivers sold separately)
- Platform Compatibility: Cisco Catalyst 4500 / 4500E Series (4503, 4506, 4507R, and related chassis)
- PoE Support: No
- Oversubscription: 8-to-1
- Interface density with Catalyst 4506/4507R chassis: up to 48/240 ports depending on configuration
- Software Requirement: Cisco IOS Software (not supported on Catalyst OS)
- Hot-Swappable: Yes
