Is this a Layer 3 switch and what management features does it have?

Yes, it's a fully Layer 3 managed Gigabit Ethernet switch supporting routing, VLANs, and link aggregation up to 14 groups. Includes remote management, fault detection, alarms, and monitoring for power supply and fans, enabling centralized control in large networks.

What are the power requirements and redundancy options?

Uses a single AC 100-240V 50/60Hz power supply with max 110W consumption; optional RPS provides -48V DC redundancy. Heat dissipation is 380 BTU/hour maximum, ensuring efficient cooling in 1U racks for high-availability deployments.

What is the switching performance of this model?

Delivers 128 Gbps full-duplex switching capacity and 95.2 Mpps forwarding rate with wirespeed non-blocking performance and latency under 10 µs. Supports 32K MAC addresses and store-and-forward switching for reliable high-throughput operations.

What are the physical and environmental specs?

1U rack-mountable fixed-configuration chassis, approximately 6.5 kg weight. Operates at 0°C to 45°C (32°F to 113°F) and 10-90% non-condensing humidity, suitable for standard data center and server room environments.

Does it support fiber connectivity?

Yes, via 4 x SFP Gigabit combo ports shared with Ethernet ports, supporting 1000Base-X over optical fiber alongside 10/100/1000Base-T copper. Enables flexible uplink options for backbone and aggregation layers.

3CRS48G-24-91 - 3Com Switch 4800G 24-Port 24 x 10/100/1000 Mbps tri-speed front ports; 4 x shared SFP Gigabit combo ports Switch

Name: 3CRS48G-24-91 - 3Com Switch 4800G 24-Port 24 x 10/100/1000 Mbps tri-speed front ports; 4 x shared SFP Gigabit combo ports Switch
Brand: 3Com
SKU: 3CRS48G-24-91

3CRS48G-24-91 - 3Com Switch 4800G 24-Port 24 x 10/100/1000 Mbps tri-speed front ports; 4 x shared SFP Gigabit combo ports Switch | US IT Hardware

Product overview

The 3Com Switch 4800G 24-Port (SKU 3CRS48G-24-91) is an enterprise-level Layer 3 managed Gigabit Ethernet switch from the Switch 4800G Gigabit Family. It features 24 x 10/100/1000 Mbps tri-speed front ports and 4 x shared SFP Gigabit combo ports, totaling 28 fixed ports for flexible copper and fiber connectivity. Supporting Gigabit Ethernet (10/100/1000Base-T) and 1000Base-X standards over twisted pair or optical fiber, it delivers wirespeed non-blocking performance with 128 Gbps switching capacity and 95.2 Mpps forwarding rate. Manageable with remote management, fault detection, alarms, and monitoring of power supply and fans. Power via single AC 100-240V supply with optional RPS for redundancy; max heat dissipation 380 BTU/hour. 1U rack-mountable form factor suits data centers and server rooms. Operating range 0°C to 45°C, 10-90% humidity. Ideal for enterprise aggregation, backbone switching, and high-availability LANs requiring Layer 3 routing and VLAN support.

24x 10/100/1000 Mbps + 4x SFP combo ports for flexible Gigabit connectivity
Layer 3 managed with 128 Gbps capacity, 95.2 Mpps forwarding rate
1U rack-mountable, 0-45°C operation, optional RPS redundancy
Remote management, fault alarms, power/fan monitoring included
Supports twisted pair & fiber, auto-MDI/MDIX for easy deployment
380 BTU/hr max heat, AC 100-240V input for reliable power

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Technology Standard
Manufacturer part #	3CRS48G-24-91
Brand	3Com
Condition	New
Model	Switch 4800G 24-Port
Manageable	Yes; supports remote management, fault detection, alarms, power supply and fan monitoring
Media Type	Twisted Pair; Optical Fiber
Product Line	Switch 4800G Gigabit Family
Product Type	L3 Managed Gigabit Ethernet Switch
Supported Layer	Layer 3
Ethernet Standard	Gigabit Ethernet (10/100/1000Base-T); 1000Base-X

Compatible systems

No specific system or OS compatibility lists found in sources

Best for

Enterprise Network Aggregation
Aggregates traffic from access switches using 24 x 10/100/1000 Mbps ports and 4 x shared SFP combo ports, supporting Layer 3 routing for efficient inter-VLAN communication in large-scale deployments.
Data Center Backbone
Provides high-performance backbone switching with 128 Gbps capacity and wirespeed forwarding, compatible with twisted pair and optical fiber media for reliable server-to-server connectivity.
Campus LAN Distribution
Layer 3 managed features enable VLAN segmentation and remote management in campus environments, with 1U rack-mount form factor fitting standard equipment racks.
High-Availability Switching
Optional RPS redundancy and monitoring of power/fans ensure uptime, operating reliably from 0°C to 45°C in demanding enterprise conditions.

Voltage Input	AC: 100-240V 50/60Hz; DC (RPS): 10.8-13.2V or -52 to -55V
Power Supplies	Single AC power supply; optional RPS for redundancy (-48V DC for PWR models)

Weight	Approximately 6.5 kg (14.3 lbs) for similar 48-port model; 24-port similar
Form Factor	1U rack-mountable; desktop compatible
Chassis Type	Fixed-configuration 1U high unit

Heat Dissipation	380 BTU/hour maximum
Operating Humidity	10% to 90% non-condensing
Operating Temperature	0°C to 45°C (32°F to 113°F)

SFP Slots	4 x SFP (shared with Gigabit Ethernet ports)
Total Ports	28 fixed ports
Ethernet Ports	24 x 10/100/1000 Mbps tri-speed front ports; 4 x shared SFP Gigabit combo ports

3Com Switch 4800G 24-Port 24 x 10/100/1000 Mbps tri-speed front ports; 4 x shared SFP Gigabit combo ports Switch

Product overview

Featuring

Compatible systems

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Interface/Ports