LeKuo USB4 40G to 8-Port 1G Ethernet Adapter

About this product

This product expands two independent PCIe x4 slots through a single USB4 interface. By installing two PCIe-to-4-port Gigabit Ethernet adapters (featuring Realtek 8111H chips), the docking station transforms into an 8-port Gigabit Ethernet expansion device. It supports scenarios such as multi-port network access, network testing, server virtualization, software-defined routing, and network storage, delivering high-speed, stable network expansion capabilities. Product Overview This product expands two independent PCIe x4 slots through a single USB4 interface. By installing two PCIe-to-4-port Gigabit Ethernet adapters (featuring Realtek 8111H chips), the docking station transforms into an 8-port Gigabit Ethernet expansion device. It supports scenarios such as multi-port network access, network testing, server virtualization, software-defined routing, and network storage, delivering high-speed, stable network expansion capabilities. Features • Plug-and-Play: USB4 technology enables operation without driver installation on mainstream operating systems. • High Performance: Single device delivers 40Gbps bandwidth. • Dual-Device Concurrency: Supports simultaneous use of two PCIe devices, sharing the USB4 40Gbps bandwidth limit. • Requires external power supply and 40Gbps cable. • Total speed shared across 40Gbps bandwidth when two devices operate simultaneously. • Integrated 10/100/1000M transceiver • Supports Giga Lite (500M) mode • Auto-negotiation with next-page capability • Supports PCI Express 1.1 • Supports switch/polarity/skew correction • Cross-detection and auto-correction • Supports 1 channel 2.5Gbps PCI Express bus • Supports hardware ECC (Error Correction Code) functionality • Supports hardware CRC (Cyclic Redundancy Check) functionality • On-chip transmit/receive buffer support • Supports PCI MSI (Message Signaled Interrupt) and MSI-X • Fully compliant with IEEE802.3, 802.3u, and 802.3ab • Supports IEEE 802.1P Layer 2 priority encoding • Supports 802.1Q VLAN tagging • Supports IEEE 802.3az-2010 (Ethernet Energy Efficiency) • Supports full-duplex flow control (IEEE 802.3x) • Supports jumbo frames up to 9K bytes • Supports Receive-Side Scaling (RSS) • Supports protocol offload (ARP & NS) • Supports Microsoft WPI (Wake-on-Packet Indication) Supports ECMA-393 ProxZzzy standard for dormant hosts System Requirements • Windows 10/11, Linux Package Contents • 1 × USB4 40G to 8x 1G Ethernet Adapter • 1 × 12V 3A Power Adapter • 1 × 40Gbps Data Cable • 1 × User Manual Note: Contents may vary by country/market