The LEKUO USB4 to 10GbE RJ45 Network Adapter (Model: DTB3R14) delivers high-speed 10-Gigabit Ethernet connectivity for Mac, Windows laptops, workstations, and NAS systems. Powered by the high-performance AQC113 controller and compatible with USB4 and Thunderbolt 3/4/5 ports, it provides ultra-fast transfer speeds up to 10Gbps (real-world tested up to 1.10 GB/s) in a compact, bus-powered, fanless design.
Key Features
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10Gbps High-Speed Transfer: Delivers up to 10Gbps data throughput with real-world file copy speeds reaching 1.10 GB/s.
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Multi-Gigabit Auto-Negotiation: Automatically negotiates 10G / 5G / 2.5G / 1G / 100M / 10M network speeds.
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Marvell AQC113 Chip: High-performance controller ensures stable, low-latency, and reliable network performance.
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Driver-Free on macOS: Instant plug-and-play setup for Apple Silicon and Intel Macs; broad compatibility with Windows and Linux.
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Bus-Powered & Fanless: Operates silently without external power adapters or noisy cooling fans.
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Universal Compatibility: Works seamlessly with USB4, Thunderbolt 3, Thunderbolt 4, and Thunderbolt 5 ports.
Technical Specifications
| Brand |
LEKUO |
| Product Name |
USB4 to 10G 1Port RJ45 Network Card |
| Model |
DTB3R14 |
| Port Type |
1 × RJ45 Port |
| Interface |
USB4 (Thunderbolt 3/4/5 Compatible) |
| Data Rate |
10M / 100M / 1G / 2.5G / 5G / 10G |
| Applications |
Desktop PCs, Laptops, Servers, NAS & Soft-Router Builds |
| Operating Temperature |
0°C to +108°C |
| Storage Temperature |
-40°C to +110°C |
| Dimensions |
102.7 × 40.4 × 25.6 mm; Cable: 20 cm |
| Weight |
Net 108.2 g / Gross 222.3 g |
| OS Support |
Windows, Linux, macOS |
Package Contents
- 1 × LEKUO USB4 to 10GbE Network Card
- 1 × USB4 Data Cable (20 cm)
- 1 × User Manual
URL:https://lekuo.com/uploadfile/upload//data/upload/image/AQC113.zip
Q: Does this USB4/Thunderbolt 10G NIC require driver installation on Mac OS?
A: Apple Mac OS is completely driver-free, plug-and-play. Whether you have a MacBook Pro or Mac Studio, simply connect to a supported Thunderbolt or USB4 port, plug in the network cable, and it will be immediately recognized for 10G networking, with no need to manually download any drivers.
Q: Does this 10G network adapter require a driver for Windows systems? Where can I download it?
A: Windows systems (Win10/Win11) require a dedicated driver for first-time use. Please ensure your computer has a USB4 or Thunderbolt 3/4/5 port, and download the latest driver directly from the 'Driver Download' section on this page.
Q: What are the cable requirements for this 10G NIC? Can ordinary cables achieve full 10G speed?
A: It is recommended to use Cat6e (Augmented Category 6) or Cat7 (or above) shielded cables. Traditional Cat5 or standard Cat6 cables may not stably reach 10Gbps bandwidth over longer distances.
Q: Can this 10G NIC be used with USB3.2, USB3.0, or standard Type-C ports?
A: Not supported. This product only supports USB4.0, Thunderbolt 3, Thunderbolt 4, and Thunderbolt 5 ports. Standard USB 3.2/3.1/3.0/2.0 ports are incompatible and will not be recognized due to bandwidth limitations.
Q: Does the metal casing get excessively hot when running the 10G NIC? Is there any fan noise?
A: This product uses a pure aluminum alloy casing for efficient heat dissipation, and operates with completely zero noise (0dB) – no built-in fan, providing an absolutely quiet working environment.
Q: Why does my computer show no response or fail to recognize the 10G NIC when plugged in? How to troubleshoot?
A: Please follow these steps to troubleshoot: 1. Confirm that your computer port is USB4.0 or Thunderbolt; 2. Use the original high-bandwidth data cable and ensure it is firmly connected; 3. For Mac users, the device will only activate after a working network cable is connected; 4. For Windows users, verify that the driver is installed successfully.
Q: Does this Thunderbolt 10G NIC require an additional external power supply?
A: No external power is required at all. This product uses a bus-powered design, drawing operating power directly from the Thunderbolt or USB4 connection, making it convenient for mobile office use.
Q: Why doesn't my 10G NIC achieve the ideal 10G speed in speed tests? How can I optimize the network settings?
A: Please perform the following optimizations: 1. Use a professional 10G speed test endpoint (e.g., files.budman.pw); 2. In the NIC advanced settings, enable Jumbo Frames and set them to 9014 bytes; 3. Verify that your switch/gateway device actually supports 10G speeds.
Q: How do I manually set the NIC speed to 10G mode on Windows?
A: Right-click This PC ➡️ Manage ➡️ Device Manager ➡️ Network Adapters ➡️ Right-click the corresponding device and select 'Properties' ➡️ Advanced ➡️ Speed & Duplex ➡️ Change the 'Value' to 10 Gbps Full Duplex.
Q: What are the requirements for the computer's SSD read/write speed to fully utilize the 10G network?
A: The computer's disk read/write speed must exceed the network transfer speed (approximately 1250MB/s). If the target drive uses a slower protocol, it will become a bottleneck. It is strongly recommended to use an NVMe SSD for testing.
