What is the switching capacity and forwarding rate?

Maximum 56 Gbps switching capacity and 41.7 Mpps forwarding rate ensure wirespeed performance across all ports. Store-and-forward architecture handles 8,192 MAC addresses for efficient Layer 2/3 SMB networking.

How is the switch managed?

Web interface with HTTPS encryption, SNMP compatibility, and 802.1X authentication. Supports CLI via front console port, plus protocols like IGMP snooping, QoS, and VLAN configuration for straightforward administration.

What are the power specifications?

Internal fixed AC power supply (100-240V, 50/60Hz); optional DC RPS. Max consumption: 45W switching + 170W PoE + 25% overhead; 290 BTU/hr dissipation. PoE budget scales for multiple devices.

What physical dimensions and environmental specs?

1U rack-mountable: 17.3 x 16.4 x 1.7 inches, 7kg (15.43 lb). Operates 0°C to 45°C (32°F-113°F), 10-90% non-condensing humidity. Status LEDs monitor ports, power, and traffic.

Does it support VLANs and QoS?

Yes, IEEE 802.1Q VLANs with automatic voice VLAN assignment. Advanced QoS via 802.1p, rate limiting, and prioritization by source/destination, TCP/UDP, DSCP for optimized traffic handling.

3CRBSG28PWR93 - 3Com 2928 PWR 24 x 10/100/1000BASE-T RJ45 PoE ports; 4 x Gigabit SFP ports Switch

Name: 3CRBSG28PWR93 - 3Com 2928 PWR 24 x 10/100/1000BASE-T RJ45 PoE ports; 4 x Gigabit SFP ports Switch
Brand: 3Com
SKU: 3CRBSG28PWR93

3CRBSG28PWR93 - 3Com 2928 PWR 24 x 10/100/1000BASE-T RJ45 PoE ports; 4 x Gigabit SFP ports Switch | US IT Hardware

Product overview

The 3Com Baseline Plus Switch 2928 PWR (SKU: 3CRBSG28PWR93) is a Layer 3 managed PoE switch designed for SMB environments. It features 24 x 10/100/1000BASE-T RJ45 PoE ports supporting IEEE 802.3af and pre-standard PoE Plus up to 30W per port, plus 4 x Gigabit SFP ports for fiber uplinks. With a 56 Gbps switching capacity and 41.7 Mpps forwarding rate, it ensures wirespeed performance. Management options include web interface with HTTPS, SNMP, and 802.1X authentication. VLAN support (IEEE 802.1Q with voice VLAN), IGMP snooping, STP/RSTP/MSTP, advanced QoS, and rate limiting enhance network control. Power budget is 170W total (up to 740W with external RPS), with internal AC supply (100-240V). Dimensions: 17.3 x 16.4 x 1.7 inches; weight: 7kg. Operating range: 0-45°C, 10-90% humidity. Ideal for powering VoIP phones, APs, and cameras while segmenting traffic.

24 PoE Gigabit ports + 4 SFP, 170W budget
56 Gbps switching, 41.7 Mpps forwarding rate
802.1Q VLANs, auto voice VLAN, IGMP snooping
Web/HTTPS/SNMP management, 802.1X auth
IEEE 802.1p QoS, STP/RSTP, rate limiting
1U rack-mount, 0-45°C operation, 7kg weight

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 #	3CRBSG28PWR93
Brand	3Com
Condition	New
Model	2928 PWR
Status LEDs	Port link status/speed; power supply; at-a-glance traffic monitoring for ports and modules
Product Line	Baseline Plus 2900
Product Type	Managed Gigabit Ethernet Switch
VLAN Support	IEEE 802.1Q VLANs; automatic voice VLAN assignment
Supported Protocols	IEEE 802.1p prioritization; IGMP snooping; STP/RSTP/MSTP; advanced QoS; rate limiting
Management Interface	Web interface with HTTPS; SNMP-compatible; 802.1X authentication

Compatible systems

No specific system or OS compatibility lists found in sources

Best for

VoIP Deployment
Automatic voice VLAN assignment and 802.1p prioritization ensure low-latency VoIP traffic over 24 PoE ports supporting up to 30W per device.
IP Surveillance
24 PoE ports with 170W budget power cameras directly; 4 SFP ports enable fiber uplinks for extended distances in security setups.
SMB Office LAN
IEEE 802.1Q VLANs, IGMP snooping, and QoS segment traffic efficiently across 56 Gbps capacity for reliable departmental networking.
Wireless Access
PoE supports APs on all 24 Gigabit ports; advanced rate limiting and STP prevent loops in expanding wireless infrastructures.

Frequently asked questions

What PoE standards does the 2928 PWR support?

Details

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Ethernet Speed	10/100/1000 Mbps on RJ45 ports; 1 Gbps on SFP ports
Forwarding Rate	41.7 Mpps maximum
Switching Capacity	56 Gbps maximum

Power Consumption

PoE Budget	170W total; up to 740W with external DC RPS
Max Wattage	45W for Ethernet switching + 170W PoE budget + 25% overhead
Voltage Input	100-240V AC, 50/60Hz; DC: -52V to -55V
Power Supplies	Internal fixed AC power supply; optional DC RPS1000-A3
Power Dissipation	290.08 BTU/hr maximum

Operating Humidity	10% to 90% non-condensing
Operating Temperature	0°C to 45°C (32°F to 113°F)

PoE Ports	24 ports supporting IEEE 802.3af PoE and pre-std PoE Plus up to 30W per port
Ethernet Ports	24 x 10/100/1000BASE-T RJ45 PoE ports; 4 x Gigabit SFP ports

3Com 2928 PWR 24 x 10/100/1000BASE-T RJ45 PoE ports; 4 x Gigabit SFP ports Switch

Product overview

Featuring

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Weight	7kg (15.43 lb)
Dimensions	17.3 x 16.4 x 1.7 inches
Form Factor	1U rack-mountable