3Com 3CRS42G-24P-91 | 4210G-PWR-24 20 x PoE 6 x Expansion Slots 10/100/1000Base-T PoE Ports Layer 2 Managed Stackable Gigabit Ethernet Network Switch

1. Switching capacity: 48 Gbps
2. Forwarding rate: 35.7 Mpps
3. MAC address table size: 8K entries
4. VLAN support: Yes
5. Quality of Service (QoS) support: Yes
6. Power over Ethernet (PoE) standard: IEEE 802.3af
7. PoE power budget: 370W
8. Number of PoE ports: 20
9. Number of non-PoE ports: 4
10. Number of SFP slots: 2
11. Number of combo SFP/ RJ-45 ports: 4
12. Management interface: CLI, SNMP, web-based management

Helpful notes:
1. The switch is designed for small to medium-sized businesses that require high-speed connectivity and PoE support.
2. The switch offers flexible deployment options with its 6 expansion slots.
3. The web-based management interface allows for easy configuration and monitoring of the switch.