StarTech.com Thunderbolt 3 to Ethernet Adapter — 10GbE, Multi-Gigabit TB3/TB4 NIC

The StarTech.com Thunderbolt 3 to Ethernet Adapter is a high-performance networking solution engineered for IT professionals, content creators, and power users who require fast, reliable connectivity from their Thunderbolt-enabled computers. This compact Thunderbolt 3/4 NIC bridges your device to a wired RJ-45 network, delivering multi-gigabit performance that scales with your infrastructure. Whether you’re editing multi-terabyte video projects, performing rapid data migrations, running virtual machines, or backing up important work to a NAS, this adapter is designed to keep up with demanding workloads without introducing bottlenecks. Built for portability and reliability, it pairs the convenience of Thunderbolt with the speed of 10GbE, offering a practical upgrade path for laptops and workstations alike.

• Blazing-fast 10GbE throughput via Thunderbolt 3/4: Tap into multi-gigabit performance over a standard RJ-45 connection. This adapter enables sustained file transfers, high-resolution video streaming, and rapid backups on networks that support 10 Gigabit Ethernet, helping you move large datasets in a fraction of the time compared to traditional gigabit solutions.
• Extensive cross-platform compatibility: Designed to work seamlessly with Windows, macOS, and select Linux distributions, this TB3/TB4 NIC provides a universal upgrade for mixed environments. It’s ideal for studios, IT labs, and small to mid-size offices where a single hardware solution must serve diverse operating systems and workflows without compatibility headaches.
• Portable, cable-free design with Thunderbolt-powered efficiency: The adapter is compact enough to slip into a laptop bag or tool kit, making it perfect for on-the-go professionals. It typically draws power directly from the Thunderbolt connection, reducing desk clutter and eliminating the need for an extra power adapter in most setups, while still delivering stable, high-speed networking.
• Reliable performance with minimal latency: Built for professionals who rely on consistent network behavior, the adapter delivers low-latency connectivity suitable for real-time collaboration, virtual machine hosts, cloud access, and streaming workflows. The 10GbE RJ-45 port supports robust error handling, ensuring stable connections even during intensive operations.
• Easy integration and future-proofing for your network: This Thunderbolt-to-Ethernet NIC is a drop-in upgrade for existing setups, compatible with modern switches and routers that support 10GbE. It’s a practical solution for workstations, laptops, and hosted environments that demand scalable networking without major hardware overhauls.

Technical Details of StarTech.com Thunderbolt 3 to Ethernet Adapter

• Product type: Thunderbolt 3/4 to RJ-45 10GbE Ethernet Adapter
• Data transfer rate: Up to 10 Gbps Ethernet throughput on networks that support 10GbE
• Interface: 1 x Thunderbolt 3/4 input; 1 x RJ-45 10GbE network port
• Supported operating systems: Windows, macOS, and select Linux distributions (driver availability may vary by OS and version)
• Power delivery: Bus-powered via the Thunderbolt connection in most configurations, reducing cable clutter and eliminating the need for a separate power source
• Compatibility notes: Designed for use with Thunderbolt 3 or Thunderbolt 4-equipped devices; performance depends on host system, cabling, and network infrastructure (switches/routers) supporting 10GbE

How to install StarTech.com Thunderbolt 3 to Ethernet Adapter

• Connect the adapter to a Thunderbolt 3 or Thunderbolt 4 port on your computer or compatible device.
• Attach a high-quality Ethernet cable (preferably CAT6a or CAT7) to the RJ-45 port and connect the other end to a 10GbE-capable switch, router, or network device.
• If required by your operating system, install the appropriate drivers or software from StarTech’s official resources; some systems may recognize the device automatically through built-in Thunderbolt drivers.
• Open your network settings and select the Thunderbolt-to-Ethernet adapter as the active network interface. Configure IP settings as needed (automatic DHCP is common, or assign a static IP for dedicated networking).
• Run a quick connectivity test to verify 10GbE performance: perform large-file transfers or a network speed test, and ensure your switch and cabling are properly configured to support 10GbE speeds.

Frequently asked questions

• Q: What speeds does this adapter support?
• A: It supports up to 10 Gbps Ethernet throughput on compatible networks. Actual speeds depend on your network infrastructure, switches, cabling, and endpoint hardware.
• Q: Do I need drivers to use this adapter?
• A: Many systems will recognize the adapter automatically, but some operating systems or configurations may require StarTech drivers or software for full 10GbE functionality. Check StarTech’s support site for the latest downloads and instructions.
• Q: Which devices are compatible with this adapter?
• A: Thunderbolt 3 or Thunderbolt 4-enabled computers and laptops can use this adapter to reach a 10GbE network. Linux users should verify distribution-specific driver support.
• Q: Is external power required?
• A: In most setups, the adapter is bus-powered via the Thunderbolt connection; no additional power supply is necessary. If your specific system or usage scenario doesn’t supply sufficient power, an external power source may be required, though this is uncommon.
• Q: Can I use this adapter on a standard gigabit network?
• A: Yes. The adapter will operate on slower networks, but to achieve 10GbE performance you need a 10GbE-capable switch and appropriate cabling. If your network only supports gigabit speeds, you’ll see speeds in that range accordingly.