Cisco WS-C3560E-48PD-SF | Catalyst 3560E Series 3560E-48P 48 x RJ-45 Ports PoE+ 10/100/1000Base-T + 2 x SFP+ X2 Based Ports Layer 3 Managed Rack-mountable Gigabit Ethernet Network Switch

Here are 12 technical specs related to the Cisco Catalyst 48-Port Layer-3 Managed Gigabit Ethernet Switch:

1. Switching capacity: 128 Gbps
2. Forwarding rate: 101.2 Mpps
3. Number of ports: 48
4. Port speed: 10/100/1000 Mbps
5. Power over Ethernet (PoE) support: Yes
6. PoE budget: 370W
7. VLAN support: Yes
8. Layer 3 routing protocols: OSPF, EIGRP, BGP, PIM-SM, PIM-DM, DVMRP, RIPv1, RIPv2, static routing
9. QoS support: Yes
10. Security features: ACLs, RADIUS, TACACS+, SSH, SSL, MAC address filtering, DHCP snooping, IP source guard, Dynamic ARP Inspection
11. Management interfaces: CLI, SNMP, Telnet, HTTP, HTTPS
12. Dimensions (WxDxH): 44.5 cm x 45 cm x 4.5 cm

Helpful notes:
1. The Cisco Catalyst 48-Port Layer-3 Managed Gigabit Ethernet Switch is ideal for enterprise-level networking needs.
2. The switch supports up to 1,000 VLANs for network segmentation and improved security.
3. The switch is designed to be energy-efficient, with features like EnergyWise to help reduce power consumption.