Cisco SG350XG-48T-K9-NA | Small Business 350X Series SG350XG-48T 48 x Ports SFP+ 10GBase-T + 2 x Ports Combo SFP+ Stackable Rack-mountable 1U Layer 3 Managed Gigabit Ethernet Network Switch

1. Ports: 48 x 10 Gigabit Ethernet (10GBase-T) ports, 4 x 10 Gigabit Ethernet (SFP+) ports
2. Switching capacity: 960 Gbps
3. Forwarding rate: 714.24 Mpps
4. VLAN support: Yes, including IEEE 802.1Q VLAN tagging and port-based VLANs
5. Power over Ethernet (PoE) support: No
6. Quality of Service (QoS) support: Yes, with support for IEEE 802.1p CoS and DSCP-based QoS
7. Management: Web-based GUI, CLI, SNMP, RMON, and Cisco FindIT Network Discovery Utility
8. Security: IEEE 802.1X authentication, Access Control Lists (ACLs), and port security
9. Layer 3 routing: Static routing and dynamic routing protocols (OSPF, RIP)
10. Link aggregation: Yes, with support for IEEE 802.3ad Link Aggregation Control Protocol (LACP)
11. Spanning Tree Protocol (STP) support: Yes, including IEEE 802.1d Spanning Tree Protocol, IEEE 802.1w Rapid Spanning Tree Protocol, and IEEE 802.1s Multiple Spanning Tree Protocol
12. Dimensions: 17.3 x 1.7 x 16.1 inches (440 x 44 x 410 mm)

Notes:
1. The switch is designed for small to medium-sized businesses and offers advanced features at an affordable price.
2. The web-based GUI makes it easy to manage the switch and configure advanced features.
3. The switch supports IPv6, which is important for future-proofing your network.