Cisco WS-C4948E | 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. Form Factor: Rack-mountable - 1U
2. Ports: 48 x 10/100/1000 + 4 x 10 Gigabit SFP+
3. Forwarding Performance: 176 Gbps
4. Switching Capacity: 352 Gbps
5. MAC Address Table Size: 55K entries
6. Jumbo Frame Support: 9216 bytes
7. VLAN Support: 4096
8. Spanning Tree Protocol Support: Yes
9. Quality of Service (QoS) Support: Yes
10. Layer 3 Routing Protocol: RIP-1, RIP-2, EIGRP, OSPF, BGP, PIM-SM, PIM-DM, IGMPv3, IGMPv2, DVMRP, MSDP, VRRP, GRE
11. Security Protocols: SSH, SSL, IEEE 802.1x, TACACS+, RADIUS, ACLs
12. Power Consumption: 350W max

Notes:
1. The switch is designed for high-performance enterprise and data center networks.
2. It supports advanced routing protocols and has a large MAC address table size.
3. The switch has a high switching capacity and supports jumbo frames for efficient data transfer.