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Compact USB-C Ethernet adapter with RJ45 port, matte black finish

KINGARD

KINGARD USB-C 2.5 Gbps Ethernet Adapter

SKU CH-XXKS-415GH

Adds a 2.5 Gbps wired network port to USB-C devices with driver-free setup on macOS Big Sur and later

  • TypeEthernet Adapter
  • 5 Gbps wired speed via USB 3.0, 2.5× faster than Gigabit Ethernet
  • Driver-free on macOS Big Sur and later for instant setup
  • Works with Windows 11, 10, 8, 7 and Linux Kernel 5.15+
  • Supports PXE, Wake-On-LAN and Auto MDI/MDIX for managed networks
  • Realtek RTL8156B chipset delivers stable, secure data streaming

USB-C 2.5 Gbps Ethernet Adapter

This adapter adds a wired 2.5 Gbps network port to laptops and tablets that only have USB-C or USB-A sockets. It suits users who need faster, more reliable throughput than Wi-Fi or standard Gigabit Ethernet can provide. The device works with macOS Big Sur or later, Windows 11 down to Windows 7, and Linux kernels 5.15 or newer.

IEEE 802.3bz 2.5 Gbps compliance

Full 2.5 Gbps speed is only available when the host port, cable, switch and driver all meet the IEEE 802.3bz standard. On a USB 2.0 port the adapter falls back to 10 or 100 Mbps, so a USB 3.0 or Thunderbolt 3/4 connection is essential for the rated throughput.

Realtek RTL8156B chipset under load

The RTL8156B controller maintains stable streaming during extended transfers and supports PXE, Wake-On-LAN and advanced power management for lower energy draw. It is not compatible with Nintendo Switch, and sustained performance depends on the host system keeping the driver up to date.

Highlights

  • 5 Gbps wired speed via USB 3.0, 2.5× faster than Gigabit Ethernet
  • Driver-free on macOS Big Sur and later for instant setup
  • Works with Windows 11, 10, 8, 7 and Linux Kernel 5.15+
  • Supports PXE, Wake-On-LAN and Auto MDI/MDIX for managed networks
  • Realtek RTL8156B chipset delivers stable, secure data streaming

Specifications

TypeEthernet Adapter

Questions about this item

What does the 2.5 Gbps rating actually deliver when the adapter is plugged into a laptop?

The adapter negotiates 10, 100, 1000 or 2500 Mbps depending on the switch and cable; full 2.5 Gbps requires a USB 3.0 or Thunderbolt port and a link partner that also supports IEEE 802.3bz.

Which USB standard limits the speed, and what happens on an older port?

A USB 3.0 Type‑C or Thunderbolt 3/4 connection is needed for 2.5 Gbps; on USB 2.0 the adapter falls back to 10/100 Mbps only.

What physical port does the adapter use to mount in a device?

It plugs directly into a USB‑C or Thunderbolt 3/4 socket; no separate bracket or mounting hardware is required.

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