3C16671 - 3Com 3C16671 LinkBuilder FMS II 24-Port 10/100 Mbps Hub

Name: 3Com 3C16671 LinkBuilder FMS II 24-Port 10/100 Mbps Hub
Brand: 3Com
SKU: 3C16671

3C16671 - 3Com 3C16671 LinkBuilder FMS II 24-Port 10/100 Mbps Hub | US IT Hardware

Product overview

The 3Com LinkBuilder FMS II 24-Port Hub (3C16671) is a managed Ethernet hub designed for small-to-medium business networks requiring reliable connectivity. It features 24 dedicated RJ-45 twisted pair ports supporting 10/100 Mbps speeds, plus one AUI port on the rear panel for transceiver module expansion. The hub conforms to IEEE 802.3 and ISO 8802/3 standards, supporting both 10Base-T and 10/100Base-TX protocols. Its compact 1U form factor (440mm × 224mm × 44mm) enables flexible deployment as a standalone unit or stacked with up to eight additional Hub 10 or LinkBuilder FMS II units for expanded network capacity. Operating across 0–50°C with 90% humidity tolerance, the hub consumes 36 VA and dissipates 123 BTU/hr. It supports both shielded 150-ohm and unshielded/shielded 100-ohm twisted pair cabling. The device is rack-mountable or desktop-deployable, making it suitable for distributed network architectures in office and branch environments.

24 × 10/100 Mbps RJ-45 ports + 1 AUI expansion port
Stackable up to 8 units for 192+ port capacity
1U rack-mount, 36 VA power, 0–50°C operating range
IEEE 802.3 & ISO 8802/3 compliant, managed/unmanaged modes
Supports 10Base-T & 10/100Base-TX with mixed-speed operation
Flexible deployment: rack, desktop, or wall-mount options

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

Environmental Standards
Manufacturer part #	3C16671
Brand	3Com
Condition	New
Model	3C16671
Product Line	LinkBuilder FMS II; SuperStack II Hub family
Product Type	Ethernet Hub; 10/100 Mbps managed hub
Ethernet Standard	IEEE 802.3; ISO 8802/3
EMC Certifications	EN 55022 Class B; EN 50082-1; FCC Part 15 Class A; CSA C108.8 Class A
Supported Protocols	10Base-T; 10/100Base-TX
Safety Certifications	UL 1950; EN 60950; CSA 22.2 #950

Compatible systems

No specific system or OS compatibility data found in search results. Hub is passive network infrastructure component compatible with any 10/100 Mbps Ethernet devices.

Best for

Branch Office Networks
Deploy as a primary connectivity hub in remote office locations. The stackable design supports up to 8 units linked together, enabling 192+ ports across a single managed stack for growing branch infrastructure.
Workgroup Connectivity
Connect 24 workstations or network devices within a department or floor. The 10/100 Mbps dual-speed ports accommodate both legacy 10Base-T and modern 100Base-TX devices simultaneously without reconfiguration.
Network Expansion
Extend existing network capacity by stacking with other Hub 10 or FMS II units. The AUI port supports optional transceiver modules for additional media types, providing flexible topology options.
Managed Network Environments
Operate in managed stack configurations with optional FMS II Management Module for centralized monitoring and control across multiple hub units in a single 19-inch rack deployment.
Mixed-Speed Environments
Support heterogeneous networks with both 10 Mbps and 100 Mbps devices. The hub automatically negotiates port speeds, eliminating the need for separate infrastructure for legacy and modern equipment.

Details

Shipping, warranty & returns

Customer reviews

No reviews yet — be the first to review this part.

Power Dissipation	123 BTU/hr

Weight	2.7 kg (5.9 lb)
Dimensions	Width: 440 mm (17.3 in); Depth: 224 mm (8.8 in); Height: 44 mm (1.7 in)
Rack Units	1U
Form Factor	1U rack-mountable; desktop/shelf mount

Storage Humidity	0% to 90% non-condensing
Operating Temperature	0°C to 50°C (32°F to 122°F)

Port Speed	10 Mbps; 100 Mbps
Network Ports	24 x RJ-45 10/100 Mbps twisted pair ports; 1 x AUI port (rear panel)

How many ports does the 3C16671 provide and what speeds are supported?

The hub provides 24 RJ-45 twisted pair ports supporting both 10 Mbps (10Base-T) and 100 Mbps (10/100Base-TX) operation, plus one AUI port for optional transceiver module expansion. All 24 ports operate simultaneously at their negotiated speeds, allowing mixed 10 Mbps and 100 Mbps devices on the same hub without reconfiguration.

Can multiple 3C16671 hubs be connected together?

Yes. Up to 8 Hub 10 or LinkBuilder FMS II units can be stacked together to form a single managed or unmanaged stack, providing up to 192 ports total. Stacks can be deployed as free-standing units or mounted in a 19-inch rack. Management modules must be installed in units 1–4 of a managed stack.

What are the physical dimensions and power requirements?

The hub measures 440mm wide × 224mm deep × 44mm high (1U) and weighs 2.7 kg. It consumes 36 VA of power with 123 BTU/hr heat dissipation. The IEC 320 power inlet includes 2-amp fuse protection, making it suitable for standard office and data center power infrastructure.

What cabling types are supported?

The hub supports both shielded 150-ohm and unshielded or shielded 100-ohm twisted pair cables. This flexibility accommodates various cabling infrastructure standards and allows integration with existing network installations without requiring complete recabling.

What mounting options are available?

The 3C16671 supports three deployment modes: free-standing on a desk or shelf, 19-inch rack mounting, or wall mounting using supplied kits. This flexibility enables deployment in diverse environments including data centers, branch offices, and space-constrained locations.

What environmental conditions does the hub support?

Operating temperature range is 0–50°C (32–122°F) with humidity tolerance of 0–90% non-condensing. These specifications support deployment in diverse locations including non-climate-controlled branch offices, warehouses, and outdoor-adjacent installations without requiring specialized environmental controls.

Is the hub managed or unmanaged?

The 3C16671 can operate in both managed and unmanaged configurations. When stacked with other units, an optional FMS II Management Module can be installed in units 1–4 to provide centralized monitoring and control across the entire stack, enabling network administrators to manage multiple hubs from a single interface.

3Com 3C16671 LinkBuilder FMS II 24-Port 10/100 Mbps Hub

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions