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Compact white USB-C dongle with RJ45 and USB-A ports

STARTECH

STARTECH US1GC301AU USB-C Gigabit Ethernet Adapter

SKU CH-D28P-NVTSA MPN US1GC301AU

Adds a Gigabit Ethernet port and a USB Type-A port through a USB-C connection with native driver support for Chrome OS, Mac OS 10.10 and Windows 8.1

  • Rated speed10/100/1000 Mbit/s
  • Interface typeUSB 3.1
  • Connection types1 x RJ45
  • Indicator lights1 × 1–10/100 Link/Activity (Green) 1 x Gigabit Link/Activity
  • Temperature range0 °C to 50 °C
  • Humidity range5% ~ 80% RH
  • Add a Gigabit Ethernet port through USB-C for fast wired networking
  • Thunderbolt 3 port compatible for broad device support
  • Extra USB Type-A port lets you connect another peripheral
  • Native driver support in Chrome OS and Windows 8.1 simplifies setup
  • Compact lightweight design at 1.34 oz for easy portability

USB-C Gigabit Ethernet Adapter

The StarTech US1GC301AU adds a 10/100/1000Mbps RJ45 network port and a USB 3.1 Gen 1 Type-A port through a single USB-C connection. It suits laptop and desktop users who need a wired Gigabit link or an extra USB-A socket for peripherals. Native driver support in Chrome OS, Windows 8.1 and Mac OS 10.10 simplifies setup for most environments.

Thermals noise and power draw

The adapter operates from 0°C to 50°C at 5% to 80% RH and draws all required power from the host USB-C port. No fan or external supply is involved, so it runs silently and adds no measurable heat to the system. The two status LEDs show link and activity for both 10/100 and Gigabit connections without increasing power demand.

Build integration and trade-offs

A free USB-C or Thunderbolt 3 port is required; the device occupies that port while providing one RJ45 jack and one USB-A port in return. Its compact 5.59" x 6.69" x 1.18" form factor and 1.34 oz weight make it easy to carry alongside a laptop. Buyers who need multiple Ethernet ports or a connection faster than 1000Mbps will not be served by this single-port adapter.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $35.99
Cheaper than about 78% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameStarTech.com
Model nameUS1GC301AU
Performance
Rated speed10/100/1000 Mbit/s
Ports & slots
Interface typeUSB 3.1
Connection types1 x RJ45
Size & build
Product dimensions5.59 in × 6.69 in × 1.18 in
Product weight1.34 oz
Shipping weight0.10 kg
Package size171 × 141 × 3 mm
Environment & compliance
Temperature range0 °C to 50 °C
Humidity range5% ~ 80% RH
More details
Indicator lights1 × 1–10/100 Link/Activity (Green)
1 x Gigabit Link/Activity (Amber)

Questions about this item

How do I install the US1GC301AU and which step causes issues?

Plug the USB-C connector into the host port; the adapter draws power from that port and adds a Gigabit RJ45 jack plus a USB 3.1 Gen 1 Type-A port. The step users miss is installing the driver on Mac OS 10.10 — Chrome OS and Windows 8.1 load it automatically.

What maintenance or replacement will the US1GC301AU need later?

No scheduled maintenance is required. Keep the RJ45 port free of dust and ensure the USB-C plug seats fully. If the link LEDs (green for 10/100, amber for 1000) stop lighting while the cable is known good, replace the adapter.

What limit appears first under sustained use of the US1GC301AU?

The operating ceiling is 50 °C ambient with humidity up to 80 % RH. Continuous heavy throughput at the 1000 Mbps rate in a hot enclosure will hit the thermal limit before the USB 3.1 Gen 1 5 Gbps bandwidth saturates.

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