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Compact USB 3.0 to RJ45 Gigabit Ethernet dongle in black plastic finish

SMUGDESK

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

SKU CH-9WRA-TXB49

Adds a wired Gigabit RJ45 port to USB 3.0 devices for stable 10/100/1000 Mbps network access on Windows, macOS and Linux

  • Stable wired speeds up to 1000 Mbps with USB 3.0 auto-negotiation
  • Adds RJ45 LAN port to thin laptops lacking built-in Ethernet jack
  • Plug-and-play on Windows 11, 10, 8.1, macOS and Linux
  • Low-latency chip keeps downloads and streams steady during long sessions
  • Compact, lightweight design fits in a backpack for travel and office use

Wired network for thin laptops

This USB 3.0 to Gigabit Ethernet adapter adds a wired RJ45 port to devices that lack one. It supports 10/100/1000 Mbps auto-negotiation for a stable high-speed connection. The compact dongle works with Windows 11, 10, 8.1, 8, XP, macOS and Linux. Most systems offer plug-and-play operation without extra drivers.

Replacing unreliable Wi-Fi

The adapter upgrades a wireless link to a wired connection, removing signal fluctuation and disconnection issues. The jump is worth it when you need consistent throughput for long downloads, streaming or online gaming. It draws power from the USB port so no separate supply is required. Ultrabooks, MacBooks and Surface devices benefit immediately.

Bandwidth headroom for everyday loads

The 1000 Mbps ceiling comfortably handles typical broadband plans, video calls and large file transfers. Latency stays low during sustained use thanks to the built-in control chip. The adapter runs out of headroom only on multi-gigabit internet tiers or LANs faster than 1 Gbps. For standard home and office networks it provides ample capacity.

How it compares

Measured against everything we stock in Network Adapters & RJ45 Plugs, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 70% of the 1,221 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Does this USB 3.0 adapter need an external power brick or a specific port orientation to work?

It draws power directly from the USB 3.0 port and works in any standard USB-A socket; no external supply or special orientation is required.

What driver step do people skip on Linux that leaves the link at 10 Mbps?

Most distributions load the driver automatically, but on some kernels you must enable the USB 3.0 xHCI controller in BIOS so the adapter negotiates 1000 Mbps instead of falling back to 10.

How often should I replace the RJ45 connector if I plug and unplug it daily for travel?

The RJ45 jack is rated for thousands of mating cycles; under daily connect-disconnect use it typically lasts several years before the retention tab wears enough to need replacement.

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