What are the power requirements and consumption?

Power consumption is 3 VA or 3-4 Watts via external adapter (100-240 VAC, 50/60 Hz). Fanless design ensures quiet, efficient operation suitable for office use without additional cooling.

What are the physical dimensions and mounting options?

Dimensions: 228 mm (9.1 in) W x 41.8 mm (1.6 in) H x 135.4 mm (5.3 in) D; weight 480-600 g (1.1-1.3 lb). Supports desktop or wall-mount form factor with rear connectors to reduce clutter.

What environmental conditions does it support?

Operating temperature 0° to 40°C (32° to 105°F); humidity 0% to 95% non-condensing. Ensures reliable performance in standard SMB office environments without special cooling.

What compliance standards are met?

EMC: EN 55022 Class B, FCC Part 15 Class B; Safety: UL 1950, EN 60950; Functional: IEEE 802.3, 802.3u, ISO 8802/3. Meets global regulatory requirements for safe, interference-free deployment.

What do the status LEDs indicate?

LEDs show port status, duplex, speed (Green=100M, Yellow=10M, Flash=Activity), and power OK. Enables quick troubleshooting of connections, speeds, and activity without tools.

3C16791 - 3Com Dual Speed Switch 8 Switch

Name: 3C16791 - 3Com Dual Speed Switch 8 Switch
Brand: 3Com
SKU: 3C16791

3C16791 - 3Com Dual Speed Switch 8 Switch | US IT Hardware

Product overview

The 3Com OfficeConnect Dual Speed Switch 8 (SKU 3C16791) is an unmanaged Ethernet switch designed for small to medium-sized businesses (SMB). It provides eight RJ-45 10BASE-T/100BASE-TX ports with 10/100 Mbps autosensing on all ports, enabling seamless integration of Ethernet and Fast Ethernet devices. Plug-and-play installation requires no configuration, supporting auto MDI-MDIX for simplified cabling. The compact desktop/wall-mount form factor measures 228 x 41.8 x 135.4 mm and weighs 480-600 g, with fanless operation for quiet use. Power consumption is low at 3-4 Watts. Status LEDs indicate port status, duplex, speed (Green=100M, Yellow=10M, flashing=activity), and power OK. It operates in 0° to 40°C and 0-95% non-condensing humidity. Compliant with EMC (EN 55022 Class B, FCC Part 15 Class B), safety (UL 1950, EN 60950), and functional standards (IEEE 802.3, 802.3u). Ideal for connecting workstations, servers, or hubs in workgroups.

8 autosensing 10/100 Mbps RJ-45 ports with auto MDI-MDIX
Low 3-4W power, 480-600g weight, desktop/wall-mount
0-40°C operation, 0-95% humidity non-condensing
Full-duplex support doubles bandwidth to 200 Mbps/port
IEEE 802.3/802.3u compliant, UL 1950 safety certified
Status LEDs for port speed, duplex, activity, power OK

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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 #	3C16791
Brand	3Com
Condition	New
EMC	EN 55022 Class B, EN 55024, EN 61000-3-2
Model	Dual Speed Switch 8
Safety	UL 1950, EN 60950, CSA 22.2 #950, IEC 60950
Standards	IEEE 802.1p Priority Tags, IEEE 802.3 Ethernet, IEEE 802.3u Fast Ethernet
Status LEDs	Port status, duplex, speed (Green=100M, Yellow=10M, Flash=Activity), power OK
Product Line	OfficeConnect
Product Type	Unmanaged Ethernet Switch
Ethernet Speed	10/100 Mbps autosensing on all ports

Compatible systems

Unmanaged switch; plug-and-play compatibility with standard Ethernet devices, no OS-specific requirements

Best for

Workgroup Expansion
Expands small office networks with 8 autosensing 10/100 Mbps RJ-45 ports, supporting seamless mixing of 10BASE-T and 100BASE-TX devices without configuration.
Server Connectivity
Connects high-speed servers or power-user workstations via full-duplex 100 Mbps ports, doubling bandwidth for bandwidth-intensive applications like databases.
Office Networking
Desktop/wall-mount design with low 3-4W power use and quiet fanless operation suits space-constrained SMB environments from 0° to 40°C.
Hub Aggregation
Auto MDI-MDIX on all ports simplifies adding Fast Ethernet hubs to existing 10 Mbps networks, enabling cost-effective migration.

Frequently asked questions

What ports does the 3Com OfficeConnect Dual Speed Switch 8 have?

Details

Shipping, warranty & returns

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Compliance Certifications	EMC: EN 55022 Class B, EN 55024, FCC Part 15 Class B, ICES-003 Class B, VCCI Class B; Safety: UL 1950, EN 60950, CSA 22.2 #950, IEC 60950; Functional: ISO 8802/3, IEEE 802.3, 802.3u

Connectors	8 RJ-45 10BASE-T/100BASE-TX ports
Network Ports	8 RJ-45 10BASE-T/100BASE-TX ports
Primary Ports	8 x RJ45

3Com Dual Speed Switch 8 Switch

Product overview

Featuring

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Power	External power adapter, Input voltage: 100-240 VAC, 50/60 Hz, 2.9VA
Power Consumption	3 VA or 3-4 Watts

Weight	480-600 g (1.1-1.3 lb)
Dimensions	Width: 228 mm (9.1 in); Height: 41.8 mm (1.6 in); Depth: 135.4 mm (5.3 in)
Form Factor	Desktop/wall-mount

Operating Humidity	0% to 95% non-condensing
Operating Temperature	0° to 40°C (32° to 105°F)