StarTech.com US1GC30B USB-C to Gigabit Ethernet Adapter - Thunderbolt 3/4 - 10/100/1000Mbps - Black Desktop Dongle
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
This adapter connects via a USB 3.1 host interface, technically supporting USB 3.2 Gen 1 speeds up to 5 Gbps, and maintains backward compatibility with USB 3.0 and 2.0 standards. It features a single RJ-45 port that supports 10/100/1000 Mbps network speeds over standard twisted-pair cabling, enabling full Gigabit throughput where infrastructure permits.
Beyond basic connectivity, the adapter includes advanced networking features such as support for 9K jumbo frames, VLAN tagging, and Wake-on-LAN, which are valuable for managed enterprise environments. It is bus-powered directly through the USB connection, eliminating the need for an external power adapter and enhancing portability.
Relevant factors for this section include Chipset Manufacturer, Chipset Model, Host Interface, Total Number of Ports. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The US1GC30B stands out by combining robust performance with exceptional ease of use and broad system compatibility. Its design prioritizes reliability in professional and mobile scenarios where a wired connection is preferred or necessary.
Universal Compatibility
Works seamlessly with USB-C, Thunderbolt 3, and Thunderbolt 4 ports, and supports operating systems including Windows 7+, Windows Server, macOS 10.14+, Linux kernel 4.11+ (LTS), ChromeOS, Android, and iOS (iPhone 15 and newer).
- No driver install required for most OS
- Native chipset support reduces conflicts
Compact and Portable
With dimensions of 0.60" x 1" x 8.30" and a weight under 1 ounce, the adapter is designed for easy transport in laptop bags or pockets, making it ideal for travelers and hybrid workers.
- Lightweight black desktop form factor
- Integrated cable for direct connection
Deployment / Use Cases
This adapter is particularly useful in environments where Wi-Fi is unreliable, congested, or insecure. It provides a dependable wired alternative that can enhance network performance for bandwidth-intensive tasks such as large file transfers, video conferencing, and software deployments.
Common deployment scenarios include corporate offices where employees use modern laptops without built-in Ethernet ports, educational institutions with mixed device fleets, and home offices seeking stable connections for remote work. It also serves as a troubleshooting tool for network diagnostics or as a temporary connection during wireless network outages.
Business and IT Support
IT teams can deploy these adapters to ensure reliable connectivity for laptops during network setup, migrations, or when diagnosing connectivity issues, reducing dependency on wireless networks.
Mobile and Remote Work
Professionals working from hotels, co-working spaces, or client sites can use the adapter to secure a fast, stable internet connection, crucial for VPN access, cloud applications, and video calls.
Physical Profile
The adapter features a sleek black finish that matches most computing devices. Its desktop form factor is compact, with a slender profile that minimizes desk clutter. The attached cable provides flexibility in placement, while the small footprint ensures it fits easily alongside other peripherals. The lightweight construction and durable materials make it suitable for frequent travel without adding significant bulk to a carry setup.
- Width
- 1" (25.40 mm)
- Depth
- 8.30" (210.82 mm)
- Height
- 0.60" (15.24 mm)
- Weight
- 0.80 oz (22.68 g)
Highlights
- Adds a Gigabit Ethernet port to USB-C or Thunderbolt 3/4 devices
- Supports 10/100/1000 Mbps network speeds for full Gigabit performance
- Plug-and-play operation with no drivers required for most operating systems
- Compatible with Windows, macOS, Linux, ChromeOS, Android, and iOS
- Uses Realtek RTL8153 chipset for reliable native compatibility
- Compact and lightweight design for maximum portability
- Bus-powered via USB, no external power adapter needed
- Includes advanced features like jumbo frames, VLAN tagging, and Wake-on-LAN
- Backward compatible with USB 3.0 and 2.0 host interfaces
- Environmentally compliant with EU RoHS, REACH, and WEEE standards
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | US1GC30B |
| Brand Name | StarTech.com |
| Product Name | USB-C to Gigabit Ethernet Adapter |
| Packaged Quantity | 1 Each |
| Product Type | Gigabit Ethernet Adapter |
| Technical Information | |
| Chipset Manufacturer | Realtek |
| Chipset Model | RTL8153 |
| Interfaces/Ports | |
| Host Interface | USB 3.1 |
| Total Number of Ports | 1 |
| Number of Network (RJ-45) Ports | 1 |
| Media & Performance | |
| Media Type Supported | Twisted Pair |
| Network & Communication | |
| Network Technology | 10/100/1000Base-T |
| Physical Characteristics | |
| Color Family | Black |
| Product Color | Black |
| Form Factor | Desktop |
| Height | 0.60" (15.24 mm) |
| Width | 1" (25.40 mm) |
| Depth | 8.30" (210.82 mm) |
| Weight (Approximate) | 0.80 oz (22.68 g) |
| Miscellaneous | |
| Device Supported | Tablet,Computer,Notebook |
| Environmentally Friendly | Yes |
| Environmental Certification | EU RoHS |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) 2,Registration, Evaluation, Authorization and Restriction of Chemicals (REACH),Waste Electrical and Electronic Equipment Directive (WEEE) |
| Country of Origin | China |
User Manual
FAQ
What devices are compatible with this USB-C to Ethernet adapter?
The adapter is compatible with any device featuring a USB-C, Thunderbolt 3, or Thunderbolt 4 port, including laptops, desktops, tablets, and 2-in-1 computers. It specifically supports tablets, computers, and notebooks as listed. It works with operating systems such as Windows 7 and newer, Windows Server, macOS 10.14+, Linux kernel 4.11+ (LTS), ChromeOS, Android, and iOS (iPhone 15 and up), providing broad flexibility across different platforms.
Does this adapter require external power or drivers to function?
No, the adapter is bus-powered, meaning it draws power directly from the USB connection, so no external power adapter is needed. For most operating systems, including Windows 10/11, macOS, ChromeOS, and many Linux distributions, it operates in plug-and-play mode without requiring additional driver installation. Some older Windows versions or specific Linux kernels might benefit from drivers, but generally, it works out of the box.
What network speeds does this adapter support?
It supports 10/100/1000 Mbps network speeds, which corresponds to Gigabit Ethernet (1000Base-T). This allows for maximum throughput up to 1 Gbps on compatible networks. The host interface is USB 3.1 (USB 3.2 Gen 1) with a data rate of up to 5 Gbps, ensuring the adapter does not bottleneck Gigabit Ethernet performance under typical conditions.
Is this adapter compatible with Thunderbolt 4 and older USB standards?
Yes, the adapter is fully compatible with Thunderbolt 4, Thunderbolt 3, and USB-C ports. It also maintains backward compatibility with USB 3.0 and USB 2.0 host interfaces, though network speeds may be limited by the slower interface in those cases. This ensures it can be used with a wide range of devices, from the latest Thunderbolt 4 laptops to older systems with USB 2.0 ports.
What advanced networking features does this adapter include?
Beyond basic connectivity, the adapter supports 9K jumbo frames for improved performance in large data transfers, VLAN tagging for network segmentation in managed environments, and Wake-on-LAN for remote power management. These features make it suitable for enterprise use where network administration and optimization are important, without requiring additional software or configuration in most cases.
How portable and durable is this Ethernet adapter for travel?
The adapter is highly portable, weighing only 0.80 ounces (22.68 grams) with compact dimensions of 0.60" x 1" x 8.30". Its desktop form factor and attached cable make it easy to pack in a laptop bag or pocket. The black finish is resistant to everyday wear, and the design is robust enough for frequent travel, providing a reliable wired connection wherever you go without adding significant bulk.
| Qty | Price | Available |
|---|
