Cisco SG500-52-K9-NA | Small Business 500 Series SG500-52 48 x Ports 1000Base-T + 2 x Ports Combo SFP + 2 x Ports SFP Stackable Layer 3 Managed GE Network Switch

Here are 12 technical specifications for the Cisco SG500-52-K9-NA switch:

1. Total number of ports: 52
2. Type of ports: 10/100/1000Base-T Gigabit Ethernet
3. Number of SFP ports: 4
4. Switching capacity: 104 Gbps
5. Forwarding rate: 77.38 Mpps
6. VLAN support: Yes, including IEEE 802.1Q VLAN tagging and port-based VLANs
7. Quality of Service (QoS) support: Yes, including 802.1p priority and DSCP-based prioritization
8. Security features: ACLs, DoS prevention, port security, and SSL encryption
9. Management options: Web-based GUI, CLI, SNMP, and Cisco FindIT utility
10. Stackable: Yes, up to 8 units can be stacked together
11. Power over Ethernet (PoE) support: No
12. Dimensions: 17.3 x 1.7 x 10.1 inches

Helpful notes:
1. The SG500-52-K9-NA is a reliable and scalable switch that can support a large number of devices.
2. With its advanced security features, this switch is ideal for businesses that require a high level of network protection.
3. The switch's stackable design allows for easy expansion and management of multiple units.