USB 3.0 to Ethernet Adapter 10/100/1000 Mbps Gigabit RJ45

USB Gigabit Network Interface

The USB 3.0 Ethernet adapter adds a wired Gigabit port to laptops, desktops and tablets that lack an RJ45 socket. It negotiates 10/100/1000 Mbps over a USB 3.0 SuperSpeed link at 5 Gbps. The ASIX AX88179 controller integrates the USB PHY and Gigabit Ethernet MAC/PHY on one chip.

The RJ45 port auto-negotiates speed and duplex, and Auto-MDIX removes the need for crossover cables. IEEE 802.3i, 802.3u and 802.3ab compliance covers 10BASE-T, 100BASE-TX and 1000BASE-T. The unit draws bus power at roughly 5 V and 200 mA, or about 1 W, so no external supply is needed.

A compact ABS housing measures about 60 x 25 x 15 mm and weighs under 40 g. The fixed USB 3.0 Type-A plug folds into a standard laptop bag. Operating temperature spans 0 °C to 40 °C, and the unit carries CE and RoHS marks. Drivers ship in-box for Windows, macOS, Linux and Chrome OS.

Key Features

• Gigabit Link over SuperSpeed USB
  The unit carries 10/100/1000 Mbps traffic across a 5 Gbps USB 3.0 link.

• ASIX AX88179 Controller
  A single-chip design integrates the USB 3.2 Gen 1 PHY and Gigabit Ethernet MAC/PHY.

• Auto-Negotiation and Auto-MDIX

  • Speed and duplex negotiate automatically at each link
  • Auto-MDIX removes crossover cable requirements
  • IEEE 802.3az Energy Efficient Ethernet reduces idle power

• Bus-Powered Operation
  The unit draws about 1 W from the USB port and needs no AC supply.

• Driver Support
  In-box drivers cover Windows 7 to 11, macOS, Linux and Chrome OS.

• Compact Housing
  The ABS case measures roughly 60 x 25 x 15 mm and weighs under 40 g.

• Status LEDs
  Link and activity indicators confirm 10/100/1000 Mbps negotiation at a glance.

• Wake-on-LAN and VLAN
  The controller supports Wake-on-LAN and IEEE 802.1Q VLAN tagging where the driver allows.

Specifications

What’s in the Box

• USB 3.0 to Gigabit Ethernet adapter

• Driver mini-CD

• Quick start leaflet

Why Choose This Adapter

• A wired Gigabit link restores throughput on ultrabooks that ship without an RJ45 port.

• The ASIX controller is widely supported, so driver installation stays predictable across operating systems.

• Bus power removes a separate supply from the desk or travel bag.

• Auto-MDIX removes crossover cable confusion at temporary workstations.

• Energy Efficient Ethernet cuts idle draw when no traffic crosses the link.

• The small ABS body fits behind a laptop without blocking adjacent USB ports.

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