StarTech.com US1GC301AU · Network adapter

MPN / P/N

US1GC301AU

Manufacturer designation

USB-C to Gigabit Network Adapter with Extra USB 3.0 Port - Black

Special Notes

Jumbo Frames are no longer supported in macOS

Power Source

USB-Powered

Input Voltage

5V DC

Output Voltage

5 DC

Colour

Black

Network Adapter Form

Attached Cable; Factor

Material

Plastic

Cable length

8.0 in [20.3 cm]

Product length

10.8 in [27.5 cm]

Width

1.4 in [35.0 mm]

Height

0.7 in [17.0 mm]

Weight

1.3 oz [38.0 g]

Operating Temperature

0C to 50C (32F to 122F)

Storage Temperature

-10C to 60C (14F to 140F)

Humidity

5% ~ 80% RH

Maximum data transfer rate

5 Gbps (USB 3.0); 1 Gbps (Gigabit Ethernet)

Type and Rate

USB 5Gbps

Compatible networks

10/100/1000 Mbps

Auto MDIX

Yes

Full Duplex Support

Yes

Jumbo Frame Support

4K max.

Number of Ports

1

Interface

USB 3.2 Gen 1 (5Gbps); RJ45 (Gigabit Ethernet)

Bus Type

USB 5Gbps

USB Pass-Through

Yes

Industry Standards

IEEE 802.3, 802.3u and 802.3ab

Chipset ID

ASIX - AX88179A; VIA/VLI - VL817

LED Indicators

1 - Green: 10/100 Link/Activity; 1 - Amber: Gigabit Link/Activity

Connector 1 (Quantity)

1

Connector 1

USB-C (5Gbps, 4.5W)

Connector 2 (Quantity)

1

Connector 2

USB-A (5Gbps, 4.5W)

Connector 3 (Quantity)

1

Connector 3

RJ-45

Selection limits

Match the exact connector standards, host features, supported OS/driver requirements and power-supply version. Manufacturer maximum throughput, resolution/refresh and Power Delivery ratings are conditional limits, not a universal result. Video conversion is directional unless the exact manufacturer specification explicitly states otherwise. USB-C video adapters require the stated video-capable host mode; display and source capabilities must match.

Specification source: StarTech.com ↗
Checked against documentation: 16.10.2026