3Com 3CR17572-91 | 4500 PWR PoE 48 x RJ-45 Ports PoE 10/100Base-TX + 2 x Dual Personality RJ45/SFP Ports + 2 x SFP Ports Layer 2 Managed Rack-mountable Gigabit Ethernet Network Switch

Here are 12 technical specifications for the 3Com 4500 PWR PoE 50-Port 10/100 Ethernet Switch:

1. Switching capacity: 12.8 Gbps
2. Forwarding rate: 9.5 Mpps
3. Number of ports: 50 10/100 Ethernet ports, 2 Gigabit Ethernet ports
4. Power over Ethernet (PoE) support: Yes
5. PoE power budget: 370W
6. VLAN support: Yes
7. Quality of Service (QoS) support: Yes
8. Layer 2 switching: Yes
9. Spanning Tree Protocol (STP) support: Yes
10. Link Aggregation Control Protocol (LACP) support: Yes
11. Dimensions: 17.3 x 12.2 x 1.7 inches
12. Weight: 10.6 pounds

Here are 3 helpful notes:

1. The 3Com 4500 PWR PoE 50-Port 10/100 Ethernet Switch is ideal for small to medium-sized businesses that require a reliable and cost-effective network solution.
2. With its PoE support and generous power budget, this switch can power a variety of PoE-enabled devices, such as IP phones and wireless access points.
3. The switch's VLAN and QoS support allow for efficient network management and prioritization of traffic, ensuring that critical applications receive the necessary bandwidth.