Leyu USB4 to 10 Gigabit Ethernet Adapter with RJ45 Port for Laptop Desktop NAS Server Compatible with Thunderbolt 3 and 4 Black
Leyu USB4 10 Gigabit Ethernet Adapter for Thunderbolt 3 and 4 Computers

Upgrade your connectivity with the Leyu USB4 Network Interface Card, a high-performance solution designed to bridge the gap between modern thin laptops and robust wired networks. This adapter delivers blazing-fast data transfer rates up to 10Gbps, making it an essential tool for network administrators, server managers, and professionals dealing with large file transfers. Unlike standard adapters limited to gigabit speeds, this unit supports a full spectrum of multi-gig protocols including 2.5G and 5G. Its compatibility with Thunderbolt 3 and 4 ensures seamless integration with high-end ultrabooks and workstations that lack built-in Ethernet ports. Whether you are stabilising a home server or enhancing a corporate NAS setup, this black adapter provides the reliability and speed required for heavy-duty networking tasks.
Features and Construction

This device is engineered for performance, featuring a dedicated RJ45 interface that handles rigorous data throughput without bottlenecks. The construction prioritises heat dissipation and durability, allowing it to function in varied environmental conditions.
Material and Build
Housed in a compact black casing, the adapter is built to withstand the rigours of daily professional use. The internal components are selected to maintain signal integrity at high speeds, minimising latency during critical operations. The physical design includes heat-resistant materials that support an operating temperature up to +108°C, ensuring stability even under sustained heavy loads. The build quality reflects a focus on functionality, providing a secure connection that remains stable in server rooms or mobile workspaces.
Size and Practical Fit
Measuring 102.7mm in length, 40.4mm in width, and 25.6mm in height, the unit is designed to be unobtrusive. The included 20cm cable offers sufficient length to position the adapter for better airflow or easier access to ports without straining the connection. This form factor makes it ideal for cluttered server racks or temporary setups where space is at a premium. Despite its small footprint, it delivers the full power of a 10-gigabit connection, proving that high performance does not require bulky equipment.
Uses and Placement

The versatility of this network card allows it to serve multiple roles across different computing environments, from enterprise servers to personal desktop upgrades.
Event or Professional Use
For IT professionals managing remote servers or NAS devices, this adapter provides a critical link for high-speed backups and data migration. It is particularly useful for laptops used in field diagnostics where gigabit Ethernet is insufficient. The ability to handle 10Gbps ensures that large databases or media files can be transferred efficiently, reducing downtime. Its wide operating temperature range also makes it suitable for industrial settings or server rooms where ambient temperatures may fluctuate significantly.
Everyday Home Use
Home users with modern ultrabooks can instantly add a reliable wired connection for gaming or 4K streaming. By bypassing unreliable Wi-Fi, users experience lower latency and more consistent download speeds. It is an excellent solution for desktop computers with faulty onboard network cards, effectively reviving the machine without needing to open the case. The plug-and-play nature via Thunderbolt or USB4 simplifies the process, requiring minimal technical knowledge to install and use.
Benefits and Buying Value

Investing in this adapter extends the lifespan of your current hardware by providing next-generation connectivity options. It eliminates the need for expensive motherboard upgrades or new device purchases just to access faster network speeds.
Reuse and Low Maintenance
The device requires no external power source, drawing all necessary energy from the host port, which reduces cable clutter. Its robust construction means it can be moved between different machines, such as from a laptop to a desktop, without losing performance. The wide temperature tolerance reduces the risk of overheating, ensuring long-term reliability without the need for active cooling solutions. This adaptability makes it a cost-effective tool for maintaining a versatile and future-proof networking setup.
Why Choose This Product
This adapter stands out by supporting the full 10Gbps standard on Thunderbolt 3 and 4 interfaces, a feature often missing in cheaper alternatives. It explicitly avoids compatibility issues by clearly stating its requirements, ensuring users with compatible ports get the advertised performance. The inclusion of all necessary cables and clear instructions allows for immediate deployment. For anyone needing a reliable, high-speed Ethernet bridge for their USB4 or Thunderbolt device, this unit offers a precise and effective solution.

