3Com

3Com Switch 4210G 48-Port 48 auto-negotiating 10BASE-T/100BASE-TX/1000BASE-T ports; 4 dual-personality 10/100/1000 or 100/1000 SFP

Name: 3CRS42G-48-91 - 3Com Switch 4210G 48-Port 48 auto-negotiating 10BASE-T/100BASE-TX/1000BASE-T ports; 4 dual-personality 10/100/1000 or 100/1000 SFP
Brand: 3Com
SKU: 3CRS42G-48-91
Price: 280 USD
Availability: InStock

MPN: 3CRS42G-48-91·By: 3Com

Part #:3CRS42G-48-91RefurbishedIn stock

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3CRS42G-48-91 - 3Com Switch 4210G 48-Port 48 auto-negotiating 10BASE-T/100BASE-TX/1000BASE-T ports; 4 dual-personality 10/100/1000 or 100/1000 SFP-

$280.00

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Product overview

The 3Com Switch 4210G 48-Port (SKU 3CRS42G-48-91) is a managed Layer 2/3 Gigabit Ethernet switch from the 3Com Switch 4210G Gigabit Family, designed for enterprise-level networking. It features 48 auto-negotiating 10/100/1000BASE-T ports, including 4 dual-personality 10/100/1000 or 100/1000 SFP ports, and 2 expansion slots supporting up to 4 10-Gigabit ports via XFP or SFP+. With a switching capacity of 176 Gbps and throughput of 130 Mpps, it handles high-density traffic efficiently. Key capabilities include support for 16K MAC addresses, 255 VLANs (IEEE 802.1Q), RSTP, Link Aggregation (IEEE 802.3ad), and security features like ACLs, RADIUS, and port-based rate-limiting. Powered by an MPC8245 466 MHz processor with 128MB RAM and 32MB flash, it offers robust management via Telnet, SSH v2, and SSL. The 1U rack-mountable unit weighs 5.0 kg, operates from 0° to 40°C, and complies with UL60950 and EN55022 standards, ensuring reliability with an MTBF of 184,000 hours for medium-sized business deployments requiring scalable Gigabit-to-the-desktop performance.

48x Gigabit ports + 4 dual SFP, 176 Gbps capacity
2 slots for 4x 10GbE expansion, 130 Mpps throughput
16K MAC, 255 VLANs, RSTP for resilient L2/3 switching
ACLs, RADIUS, SSH/SSL for enterprise-grade security
MPC8245 466MHz CPU, 128MB RAM, 1U rack-mount
184K hours MTBF, 0-40°C operation for reliability

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

Manufacturer part #	3CRS42G-48-91
Brand	3Com
Condition	Refurbished
MTBF	184,000 hours (21 years)
Model	3Com Switch 4210G 48-Port
Technology	Quad-speed performance: 10/100/1000 Mbps and 10-Gigabit
Flash Memory	32MB
Product Line	3Com Switch 4210G Gigabit Family
Product Type	Managed Layer 2/3 Gigabit Ethernet Switch
VLAN Support	255 VLANs (IEEE 802.1Q)
Processor Memory	128MB
Immunity Standards	EN55024
Emissions Standards	EN55022 Class A; FCC Part 15 Subpart B Class A; ICES-003 Class A; VCCI Class A; AS/NZS 3548 Class A; CNS 13438 Class A; CISPR 22 Class A
Supported Protocols	IEEE 802.1p (CoS); IEEE 802.1Q (VLANs); IEEE 802.1w (RSTP); IEEE 802.1X (Security); IEEE 802.3ab (Copper Gigabit); IEEE 802.3ad (Link Aggregation)
Management Interface	Telnet; SSH v2 (56-bit DES); SSL (HTTPS) 40-bit and 56-bit DES
Safety Certifications	UL60950; EN60950; CSA2.2 No. 60950; IEC 60950

Storage

Flash Memory	32MB
Processor Memory	128MB

Processor

Processor	MPC8245 (466 MHz)

Network & Communication

Throughput	130 Mpps
MAC Address Table	16K MAC addresses
Switching Capacity	176 Gbps
Packet Buffer Memory	4MB

Security

Security Features	MD5 cipher-text authentication; Clear-text authentication; RADIUS management; Access Control Lists (ACLs); Port-based rate-limiting

Power Consumption

Voltage Input	100 to 240 Volts AC; 50/60 Hz
Current Rating	2.0A
Heat Dissipation	210W (717 BTU/hr)

Physical Characteristics

Weight	5.0 kg (11.0 lbs)
Dimensions	Height: 45 mm (1.7 in); Width: 440 mm (17.3 in); Depth: 415 mm (16.4 in)
Rack Units	1U
Form Factor	1U Rack-mountable

Environmental

Humidity	10% to 95% non-condensing (operating and storage)
Storage Temperature	−10° to 70°C (14° to 158°F)
Operating Temperature	0° to 40°C (32° to 104°F)

Interface/Ports

Ethernet Ports	48 auto-negotiating 10BASE-T/100BASE-TX/1000BASE-T ports; 4 dual-personality 10/100/1000 or 100/1000 SFP ports
Expansion Slots	2 expansion slots for up to 4 10-Gigabit ports

Compatible systems

No specific system or OS compatibility data found in available sources; this is a network infrastructure switch compatible with standard Ethernet-based networks

Best for

Campus Networking
Supports 48 Gigabit ports and 255 VLANs for segmenting traffic in educational or corporate campuses, with 176 Gbps switching capacity ensuring wirespeed performance across 10/100/1000 Mbps connections.
Data Center Edge
2 expansion slots for up to 4x 10-Gigabit ports enable high-speed uplinks to core switches, backed by 130 Mpps throughput and 16K MAC address table for dense server connectivity.
Enterprise Branch
Layer 2/3 features like RSTP, Link Aggregation, and ACLs provide resilient, secure connectivity for branch offices, with management via SSH/SSL for remote administration.
SMB Expansion
Quad-speed ports (10/100/1000/10G) and 4MB packet buffer deliver scalable Gigabit-to-the-desktop deployment for growing medium businesses without performance bottlenecks.

Frequently asked questions

What ports does the 3Com Switch 4210G 48-Port support?

It includes 48 auto-negotiating 10/100/1000BASE-T ports, with 4 dual-personality 10/100/1000 RJ-45 or 100/1000 SFP ports, plus 2 expansion slots for up to 4 10-Gigabit ports using XFP/SFP+/CX4 modules. All ports feature auto-MDI/MDIX for easy deployment.

What is the switching performance?

The switch provides 176 Gbps switching capacity and 130 Mpps forwarding rate, with 16K MAC address table, 4MB packet buffer, and wirespeed performance across all ports, supporting quad-speed 10/100/1000/10G operations without bottlenecks.

What management and security features are available?

Management via Telnet, SSH v2 (56-bit DES), SSL (40/56-bit), CLI, Web, SNMP. Protocols: 802.1p/q/w/X, 802.3ab/ad. Security includes MD5/RADIUS authentication, ACLs, port rate-limiting, ensuring secure, resilient Layer 2/3 operations.

What are the physical dimensions and power requirements?

1U rack-mountable at 45mm H x 440mm W x 415mm D, weighing 5.0 kg. Power: 100-240V AC 50/60Hz, 2.0A current, 210W heat dissipation (717 BTU/hr), suitable for standard enterprise racks.

What environmental specs does it meet?

Operating: 0° to 40°C, 10-95% non-condensing humidity; storage: -10° to 70°C. MTBF 184,000 hours. Complies with UL60950, EN60950 safety; EN55022 Class A emissions; EN55024 immunity.

Is it suitable for 10GbE uplinks?

Yes, 2 expansion slots support modules for up to 4 10-Gigabit ports (XFP, SFP+, CX4), paired with 176 Gbps capacity and 130 Mpps throughput for high-speed backbone connections in data centers.

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Manufacturer part #

3CRS42G-48-91

Brand

3Com

Condition

Refurbished

MTBF

184,000 hours (21 years)

Model

3Com Switch 4210G 48-Port

Technology

Quad-speed performance: 10/100/1000 Mbps and 10-Gigabit

Flash Memory

32MB

Product Line

3Com Switch 4210G Gigabit Family

Product Type

Managed Layer 2/3 Gigabit Ethernet Switch

VLAN Support

255 VLANs (IEEE 802.1Q)

Processor Memory

128MB

Immunity Standards

EN55024

Emissions Standards

EN55022 Class A; FCC Part 15 Subpart B Class A; ICES-003 Class A; VCCI Class A; AS/NZS 3548 Class A; CNS 13438 Class A; CISPR 22 Class A

Supported Protocols

IEEE 802.1p (CoS); IEEE 802.1Q (VLANs); IEEE 802.1w (RSTP); IEEE 802.1X (Security); IEEE 802.3ab (Copper Gigabit); IEEE 802.3ad (Link Aggregation)

Management Interface

Telnet; SSH v2 (56-bit DES); SSL (HTTPS) 40-bit and 56-bit DES

Safety Certifications

UL60950; EN60950; CSA2.2 No. 60950; IEC 60950

Flash Memory

32MB

Processor Memory

128MB

Throughput

130 Mpps

MAC Address Table

16K MAC addresses

Switching Capacity

176 Gbps

Packet Buffer Memory

4MB

Voltage Input

100 to 240 Volts AC; 50/60 Hz

Current Rating

2.0A

Heat Dissipation

210W (717 BTU/hr)

Weight

5.0 kg (11.0 lbs)

Dimensions

Height: 45 mm (1.7 in); Width: 440 mm (17.3 in); Depth: 415 mm (16.4 in)

Rack Units

Form Factor

1U Rack-mountable

Humidity

10% to 95% non-condensing (operating and storage)

Storage Temperature

−10° to 70°C (14° to 158°F)

Operating Temperature

0° to 40°C (32° to 104°F)

Ethernet Ports

48 auto-negotiating 10BASE-T/100BASE-TX/1000BASE-T ports; 4 dual-personality 10/100/1000 or 100/1000 SFP ports

Expansion Slots

2 expansion slots for up to 4 10-Gigabit ports