Used Cisco 48 Port 10 100BASEd TX Ethernet Switching Module WS-X6248-RJ-45

This 48-port 10/100BASE-T Ethernet Switching Module (WS-X6248-RJ45) provides 48 switched 10/100-Mbps autosensing, full or half-duplex ports.
The 48 ports have RJ-45 connectors for Category 3, Category 5, Category 5e, or Category 6 UTP or FTP cable.  

• Number of Ports : Fourty-eight (48) 10/100BASE-TX (RJ-45)
• Backplane Connection : 32 Gbps Bus
• Forwarding : Centralized
• Port Buffer Size : 128 KB
• Inline Power : No
• Connector Type : RJ-45
• Compatible with : Cisco Catalyst 6000 and 6500 Series Switches
• Serial Number: SAD03408276
• Model Number: WS-X6248-RJ-45
• Part Number: 73-3244-08 Rev. C0