StarTech.com US1GC30W · USB network adapter

MPN / P/N

US1GC30W

Manufacturer designation

USB-C to Gigabit Ethernet Adapter, White, Thunderbolt 3 Compatible, Windows & Mac, RJ45 LAN Network Converter

Manufacturer conditions

Jumbo Frames are no longer supported in macOS

Power source

USB-Powered

Input voltage

5V DC

Output voltage

5 DC

Colour

White

Network adapter form factor

Attached Cable

Material

Plastic

Cable Length

4.9 in [12.5 cm]

Product length

8.5 in [21.5 cm]

Product width

1.1 in [27.5 mm]

Product height

0.6 in [16 mm]

Product weight

0.8 oz [24.0 g]

Operating temperature

0C to 45C (32F to 113F)

Storage temperature

-10C to 70C (14F to 158F)

Humidity

10%-85% RH

Maximum documented data rate

5 Gbps (USB 3.0); 2 Gbps (Ethernet - Full-Duplex)

Type and rate

USB 5Gbps

Compatible networks

10/100/1000 Mbps

Auto MDIX

Yes

Full-duplex support

Yes

Wake-on-LAN — manufacturer conditions

Yes

Number of ports

1

Interface

RJ45 (Gigabit Ethernet)

Bus type

USB 5Gbps

Industry standards

IEEE 802.3, 802.3u and 802.3ab

Chipset ID

Realtek - RTL8153

Connector 1 (Quantity)

1

Connector 1

USB-C (5Gbps, 4.5W)

Connector 2 (Quantity)

1

Connector 2

RJ-45

Documented selection limits

Match the exact host interface, peripheral/device protocol, connector, firmware, OS/driver and power requirements before ordering. Published maximum rates are interface limits, not guaranteed application throughput. No universal device or current/future OS compatibility is implied. Match USB host generation and OS/driver support; USB bus bandwidth may limit Ethernet line-rate performance. Fiber/SFP variants require the correct transceiver/link partner, supplied modules must be checked. RJ45 Ethernet does not imply PoE output.

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