How many units can be stacked together?

Up to 8 units can be stacked and managed as a single IP entity with a shared 16K MAC address table, providing resilient distributed architecture like XRN for high-availability networks.

What management options are available?

Management is supported via IMC Intelligent Management Center, command-line interface, web browser interface, and SNMP manager, offering flexible tools for enterprise IT teams to configure and monitor the Layer 4 switch.

Does it support Power over Ethernet?

Yes, PoE is provided on 48 ports through the internal power supply, compatible with IEEE 802.3af standards, ideal for powering IP phones, cameras, or access points without additional hardware.

What security protocols are supported?

It supports IEEE 802.3 Ethernet, CHAP, EAP, PAP, RADIUS, SSH, SSH2, and TACACS+ for secure authentication and access control, ensuring protection in enterprise environments.

What is the form factor and power supply?

Rack-mountable and stackable design with internal power supply operating at AC 120/230 V, 50/60 Hz, including status LEDs for port speed, duplex, and power monitoring.

3CR17253-91 - 3Com 5500G-EI PWR PoE 48 Port 44 x 10/100/1000 PoE ports; 4 x dual-personality 10/100/1000 or SFP Gigabit ports Switch

Name: 3CR17253-91 - 3Com 5500G-EI PWR PoE 48 Port 44 x 10/100/1000 PoE ports; 4 x dual-personality 10/100/1000 or SFP Gigabit ports Switch
Brand: 3Com
SKU: 3CR17253-91

3CR17253-91 - 3Com 5500G-EI PWR PoE 48 Port 44 x 10/100/1000 PoE ports; 4 x dual-personality 10/100/1000 or SFP Gigabit ports Switch | US IT Hardware

Product overview

The 3Com SuperStack 4 Switch 5500G-EI PoE (SKU 3CR17253-91) is an enterprise-grade managed stackable Gigabit Ethernet switch designed for demanding network environments. It features 44 x 10/100/1000 PoE ports and 4 x dual-personality 10/100/1000 or SFP Gigabit ports, enabling flexible connectivity and power delivery to devices like IP phones and cameras. An expansion slot supports Gigabit or 10-Gigabit modules for future-proof scalability. With a 16K MAC address table and stacking up to 8 units, it provides resilient performance managed as a single entity via IMC, CLI, web, or SNMP. Protocols include IEEE 802.3, RADIUS, SSH, and TACACS+ for robust security. The rack-mountable form factor with internal AC power supply (120/230V, 50/60Hz) and status LEDs ensures reliable deployment in enterprise data centers, branch offices, or converged networks requiring high uptime and PoE support.

44x Gigabit PoE ports + 4x dual SFP for flexible connectivity
Stack up to 8 units with 16K MAC table for resilient scaling
IMC, CLI, SNMP management with RADIUS/SSH security
1x expansion slot for 10Gb uplinks and growth
Rack-mountable with internal AC 120/230V power supply
PoE on 48 ports eliminates separate power injectors

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 #	3CR17253-91
Brand	3Com
Condition	New
Model	5500G-EI PWR PoE 48 Port
Product Line	SuperStack 4 5500G-EI
Product Type	Managed Stackable Gigabit Ethernet Switch
MAC Address Table	16K entries
Management Interface	IMC - Intelligent Management Center; command-line interface; Web browser; SNMP Manager
Max Units In A Stack	8 units

Network & Communication

Compatible systems

No specific compatibility lists found in sources

Best for

Enterprise Data Centers
Supports stacking up to 8 units with 16K MAC table for high-density Gigabit connectivity and resilient XRN architecture, ideal for core switching with 10-Gigabit expansion.
Branch Offices
Rack-mountable design with 44 PoE ports powers IP devices while 4 dual-personality SFP ports enable fiber uplinks, ensuring flexible deployment in distributed networks.
VoIP and Surveillance
PoE on 48 ports delivers power to phones and cameras alongside Layer 4 management via IMC and SNMP, supporting secure protocols like RADIUS and SSH.
Converged Networks
Internal power supply and status LEDs provide reliable operation with protocols including IEEE 802.3 and TACACS+, optimized for mixed voice, data, and video traffic.

Frequently asked questions

What ports does the 3Com SuperStack 4 Switch 5500G-EI PoE have?

Details

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IGMP Support	IGMP v1 and v2

Layer Support	Layer 2/3/4

Link Aggregation	Supported (LAG)

Multicast Routing	Protocol Independent Multicast-Sparse Mode (PIM-SM), Multicast VLAN Registration (MVR)

Dynamic Host Configuration	DHCP Relay: 8 K max

Security

Supported Protocols	IEEE 802.3 Ethernet; CHAP; EAP; PAP; RADIUS; SSH; SSH2; TACACS+
Authentication Methods	IEEE 802.1X with Local, RADIUS, or TACACS+ server authentication; PAP, ChAP, EAPoL, EAP-TLS/TTLS, PEAP

Power Supplies	Internal power supply; Nominal Voltage: AC 120/230 V; Frequency: 50/60 Hz
PoE Power Per Port	15.4 Watts per port (48-port model)
Power Over Ethernet	PoE on 48 ports

Form Factor	Rack-mountable stackable switch
Status LEDs	Port transmission speed; port duplex mode; power

Interface/Ports

Port Speed	10/100/1000Base-T auto-negotiation
Ethernet Ports	44 x 10/100/1000 PoE ports; 4 x dual-personality 10/100/1000 or SFP Gigabit ports
Stacking Ports	2 fixed fabric ports
Expansion Slots	1 x module slot for Gigabit or 10-Gigabit expansion
SFP Combo Ports	4 SFP combo ports (dual-purpose, only 1 port per pair usable simultaneously)
Network Interfaces	Gigabit Ethernet; PoE support
Expansion Module Compatibility	8 Port 1000 Mbps SFP Module, 1 Port 10 Gbps XENPAK Module

3Com 5500G-EI PWR PoE 48 Port 44 x 10/100/1000 PoE ports; 4 x dual-personality 10/100/1000 or SFP Gigabit ports Switch