Cisco WS-C4948E-F= | Catalyst 4900 Series 4948E 48 x RJ-45 Ports 10/100/1000Base-T + 4 x SFP+ Ports Layer 3 Managed Rack-mountable Gigabit Ethernet Network Switch

1. Switching Capacity: 176 Gbps
2. Forwarding Rate: 131 Mpps
3. MAC Address Table Size: 55,000 entries
4. Jumbo Frame Support: 9216 bytes
5. VLAN Support: 4096 active VLANs
6. Spanning Tree Protocol: STP, RSTP, MSTP
7. Link Aggregation Control Protocol: LACP
8. Quality of Service (QoS): 8 egress queues per port
9. Power over Ethernet (PoE): Not supported
10. Redundant Power Supply (RPS): Supported with RPS2300
11. Operating Temperature: 0°C to 40°C (32°F to 104°F)
12. Dimensions (H x W x D): 1.73 x 17.3 x 16 in (4.4 x 44 x 40.6 cm)

Notes:
1. The Cisco Catalyst 4948E is designed for high-performance enterprise and data center networks.
2. The switch offers advanced security features, including access control lists (ACLs) and port security.
3. The four expansion slots allow for additional connectivity options, such as 10 Gigabit Ethernet or fiber optic interfaces.