StarTech.com US1GC303APD — USB-C Ethernet Adapter with 3-Port Hub and PD
Gigabit Ethernet3× USB-A 5 Gbps60 W PDBlack
The StarTech.com US1GC303APD is an USB-C Gigabit Ethernet adapter with 3-port USB 3.0 hub and Power Delivery that adds a wired Gigabit Ethernet port to a laptop, desktop PC, tablet or thin client through its USB-C port. It combines a Gigabit port, three 5 Gbps USB-A ports and a USB-C Power Delivery input that charges the laptop with up to 60 W. It is built on the VLI VL100 + VLI VL813 + Realtek RTL8153 controller and connects at 10/100/1000 Mbps. It draws its power from the USB port, so there is no separate power supply to carry. A cable connection is the dependable answer when Wi-Fi is weak, crowded or not allowed, when a slim laptop has no network socket, or when backups, large downloads and video calls need a steady, low-latency link.
Compatibility — check before buying:
Check the port: the adapter has a USB-C plug and does not fit USB-A ports; any USB-C data port works, including Thunderbolt 3/4 and USB4 ports. It links at up to 1 Gbps with any standard switch or router port, and Cat5e cable or better is enough. The USB-C port is for charging only — no data and no DisplayPort video — and it passes up to 60 W, not 100 W. The charger is not included. Operating systems listed by StarTech.com: Windows, macOS, Linux, ChromeOS. Not sure it suits your laptop, dock or switch? Tell us the model and we check it.
Best For
✓ Laptops without an Ethernet port
✓ Stable video calls and remote desktop
✓ Office desks and hot desks
✓ Backups and large downloads
✓ Replacing a faulty built-in port
✓ IT toolkits and travel bags
Key Features
Gigabit Ethernet
Up to 1000 Mbps full duplex for steady calls, cloud work and file transfers; falls back to 100/10 Mbps automatically.
USB-C plug
Fits the USB-C port of current laptops, tablets and PCs, including Thunderbolt 3/4 and USB4 ports.
Network features
Supports 9K jumbo frames, 802.1Q/p VLAN, IEEE 802.3az EEE, 802.3x flow control.
3 USB ports + PD
Three 5 Gbps USB-A ports and up to 60 W laptop charging through one USB-C connection.
Technical Specifications
| Identification |
| Brand |
StarTech.com |
| Product |
USB-C to Ethernet Adapter with 3-Port USB 3.0 Hub and Power Delivery |
| Part Number |
US1GC303APD |
| EAN / GTIN |
0065030869973 |
| Network |
| Ports |
1× RJ45 Gigabit Ethernet |
| Speeds |
10/100/1000 Mbps |
| Chipset |
VLI VL100 + VLI VL813 + Realtek RTL8153 |
| Features |
9K jumbo frames, 802.1Q/p VLAN, IEEE 802.3az EEE, 802.3x flow control |
| Host Connection |
| Connector |
USB-C (5 Gbps) |
| USB |
USB 3.2 Gen 1 (5 Gbps) Type-C |
| Power |
USB bus powered |
| USB hub |
3× USB-A 3.0 (5 Gbps, 4.5 W each) |
| USB-C PD port |
Power Delivery input only, up to 60 W to the laptop (PD 2.0); no data, no video |
| Compatibility |
| Operating Systems |
Windows, macOS, Linux, ChromeOS |
| Physical |
| Colour |
Black |
| Cable |
15 cm |
| Dimensions |
95 × 41 × 17 mm |
| Weight |
46 g |
| In the Box |
| Included |
USB-C Ethernet adapter with hub and PD, quick-start guide |
| Not Included |
USB-C PD charger, network cable |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
StarTech.com publishes a 2-year warranty for this part number in its official datasheet. Singular’s direct warranty is 1 year; beyond that we assist you with the manufacturer’s warranty process for its full duration. |
Frequently Asked Questions
Do I need to install a driver?
Supported systems listed by StarTech.com: Windows, macOS, Linux, ChromeOS. Where the system does not load a driver on its own, install the driver from the StarTech.com support page for this model.
Is it faster than Wi-Fi?
A wired Gigabit link gives up to 1 Gbps with steadier latency than most Wi-Fi connections — that is what video calls, remote desktop and large transfers benefit from. Your internet speed still depends on your connection.
Can I use it on a USB-A port?
No, it has a USB-C plug only. For USB-A computers choose a USB-A version.
Does it work through a dock or USB hub?
Usually yes — it is a standard USB network device. For full speed the hub or dock port must be USB 3.x, and bus-powered hubs should have enough power for all connected devices.
Singular Expert Insight
We suggest the US1GC303APD for a single-port USB-C laptop that needs network, a few USB devices and charging through one cable — a mini travel dock. For 100 W PD without hub:
1GPD3-USB-C-ETHERNET. Browse more
network cards or
docking stations. Local support in Cyprus comes with every order.
Buyer’s Guide
Buy it if
You want network, three USB-A ports and charging on one USB-C port.
Skip it if
You need a monitor output — choose a docking station.
Also consider
StarTech.com 1GPD3-USB-C-ETHERNET — Gigabit + 100 W PD.