URL:https://www.lekuo.com/uploadfile/upload/https://cn.lekuo.com/uploadfile/upload/data/upload/image/RTL8111.zip
Q: Does this adapter require a USB4 port, or can it work with Thunderbolt 3/4/5?
A: This adapter uses a USB4 Type-C interface and is fully compatible with Thunderbolt 3, Thunderbolt 4, and Thunderbolt 5 ports. As long as your device has any of these interfaces, you can use it without additional adapters.
Q: What is the maximum bandwidth, and is it shared across all 8 ports?
A: The USB4 interface provides up to 40Gbps of total bandwidth, which is shared across all 8 Gigabit ports. Each port supports full-duplex 1Gbps transmission. For most use cases — NAS, soft routing, VM networking — the 40Gbps upstream is more than sufficient to prevent bottlenecks.
Q: Does it work on macOS?
A: The adapter is officially supported on Windows 10/11 and Linux. macOS is not listed as a supported OS. We recommend using it with a Windows or Linux host for guaranteed compatibility.
Q: Do I need to install drivers manually?
A: Yes, drivers may be required for first-time use. You can download the driver directly from this page — scroll down to find the Driver Download button below.
Q: Is an external power adapter required?
A: Yes. To ensure stable operation of all 8 Gigabit ports simultaneously, the included 12V 3A power adapter must be connected. Running without external power may cause port instability or the device to not function at all.
Q: Can I use this for link aggregation on a NAS?
A: Absolutely. The 8 independent RJ45 ports support link aggregation (e.g., 802.3ad LACP), making this an excellent solution for NAS storage to achieve higher throughput and redundancy.
Q: What cable is required for 40Gbps performance?
A: A 40Gbps certified USB4 or Thunderbolt 4 cable is required. The package includes one 40Gbps high-speed data cable. Standard USB-C cables will not achieve full bandwidth.
Q: Can this be used as a soft router with multiple WAN connections?
A: Yes. The 8 independent Gigabit ports can be assigned to different network interfaces, making it well-suited for multi-WAN load balancing on platforms like pfSense, OPNsense, or iKuai.
Q: What is the physical size and weight?
A: The unit measures 116 × 65 × 84 mm and weighs 556g (net). It is a compact desktop device, easy to integrate into mini PC setups, home labs, or server shelves.
Q: What is included in the package, and what warranty does it come with?
A: The package includes: 1× USB4 8-Port Gigabit Ethernet Adapter, 1× 12V 3A Power Adapter, 1× 40Gbps USB4/Thunderbolt 4 Data Cable, and 1× User Manual. The product comes with a 1-year warranty from Lekuo, with technical support available.
