Name: 3CRS42G-24-91 3Com 4210G-24 24 x RJ-45 Ports 10/100/1000Base-T + 4 x SFP (mini-GBIC) Layer 2 Managed Rack-mountable Stackable Ethernet Network Switch
Brand: 3Com
SKU: 3CRS42G-24-91
Price: 512.51 USD
Availability: InStock
Rating: 4.8 (125 reviews)

Product Overview
The 3Com 4210G 24-Port Managed Switch (3CRS42G-24-91) offers a comprehensive set of features suitable for enterprise and campus networks. With its combination of Gigabit Ethernet ports, SFP slots, and support for advanced Layer 2+ and Layer 3 functionalities, it provides the flexibility and scalability required for modern networking environments. Its emphasis on security and ease of management ensures that it can meet the demands of growing organizations seeking reliable network infrastructure.

General Information
Brand	3Com
Part Number	3CRS42G-24-91
Condition	Refurbished

Technical Information
Form Factor	Rack-Mountable
Mount Type	1U Rack
Switch Ports	24 x 10/100/1000BASE-T RJ-45 ports 4 x SFP (mini-GBIC) slots
Number of Ports	24-Ports
Switching Capacity	48 Gbps
Switch Forwarding Rate	35.7 Mpps
Max VLANs Supported	Up to 256 VLANs

Performance
Jumbo Frame Support	Up To 9216 Bytes
MAC Address Table Size	16,000 entries

Management and Configuration
Security	ACLs, 802.1X, RADIUS, TACACS+, DHCP Snooping
Remote Management Protocol	SNMP v1/v2c/v3, HTTP/HTTPS, Telnet/SSH, RMON

Power & Cooling
Power Supply	Internal AC Power Supply

Physical Characteristics
Dimensions	1.72 in x 17.3 in x 12.0 in
Weight	10.00
Operating Temperature	0°C to 50°C (32°F to 122°F)

Product Description
The 3Com 4210G 24-Port Managed Switch (model 3CRS42G-24-91) is engineered to deliver reliable and scalable network performance for enterprise and campus environments. It features 24 auto-negotiating 10/100/1000BASE-T ports, with 4 dual-personality SFP slots, providing flexibility for both copper and fiber connections. The switch supports a switching capacity of 48 Gbps and a forwarding rate of 35.7 million packets per second, ensuring efficient data handling and low latency. Key Features 24 auto-negotiating 10/100/1000BASE-T ports and 4 dual-personality SFP slots Switching capacity of 48 Gbps and forwarding rate of 35.7 Mpps Supports up to 256 VLANs and jumbo frames up to 9,216 bytes Layer 3 static routing capabilities with support for RIP v1/v2 and OSPF Advanced security features including ACLs, 802.1X, RADIUS, and TACACS+ Management protocols include SNMP v1/v2c/v3, HTTP/HTTPS, Telnet/SSH, and RMON Hot-swappable design for easy maintenance and upgrades This switch is ideal for businesses seeking a cost-effective solution that doesn't compromise on performance or features. Its robust Layer 2+ and Layer 3 capabilities, combined with advanced security and management options, make it a versatile choice for various networking needs.

Use Cases
The 3Com 4210G-24 managed switch is well-suited for campus and enterprise network deployments where reliable, high-speed connectivity and advanced traffic management are essential. IT administrators in medium to large organizations benefit from its Layer 2+ and static Layer 3 routing capabilities, which help optimize network segmentation and inter-VLAN routing. Its stackable design supports scalability in growing network environments. How It's Used: Campus network backbone connecting multiple buildings with VLAN segmentation to separate academic, administrative, and guest traffic. Enterprise IT environments requiring robust Layer 2+ features to manage multicast traffic and prevent network loops via STP. Data closet deployments in SMBs needing a combination of copper and fiber connectivity through RJ-45 and SFP ports for flexible uplinks. Branch office infrastructure leveraging static routing for simplified inter-VLAN communication without deploying full Layer 3 routing hardware. Rack-mounted setups in edge computing sites where stackable switches enable efficient port expansion and simplified management. By integrating advanced Layer 2+ features with static Layer 3 routing, the 3Com 4210G-24 enhances operational efficiency through improved traffic segregation and routing. Its modular connectivity options and stackability support network growth and adaptability while maintaining consistent performance across diverse enterprise environments.