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Small aluminium USB 3.0 dongle with RJ45 port and braided cable

GCROWN

GCROWN USB 3.0 to RJ45 Gigabit Ethernet Adapter

SKU CH-A40P-V64XK

Adds a gigabit RJ45 port over USB 3.0 with driver-free Windows, Mac and Chrome OS support

  • TypeEthernet Adapter
  • Gigabit wired speed over USB 3.0 5 Gbps bus
  • Driver-free setup on Windows 11, 10, 8.1, 8, 7, Vista, XP and Mac OSX 10.6, 10.7
  • Compact aluminium shell adds RJ45 to Ultrabooks and tablets
  • Wake-on-LAN, full-duplex and auto MDIX supported in hardware
  • USB powered, backward compatible with USB 2.0 and 1.1

USB 3.0 Gigabit Ethernet Adapter for Laptops

The GCROWN USB 3.0 to RJ45 adapter adds a wired gigabit network port to ultrabooks, notebooks and tablets that lack built-in Ethernet. It targets users who need a stable, low-latency connection for file transfers, video calls, gaming or HD streaming. Driver-free installation works with Windows, macOS and Chrome OS out of the box. USB bus power means no external supply is required.

USB 3.0 Bus and Cable Limits

Full 10/100/1000Mbps throughput runs over the USB 3.0 5Gbps bus, so the adapter cannot exceed that host bandwidth. Backward compatibility with USB 2.0 and 1.1 ports is supported, but speed drops to the host port's maximum. To reach 1000Mbps the link requires CAT6 or higher Ethernet cables; lesser categories will restrict performance. Link and activity LEDs provide basic link diagnostics.

OS Compatibility Decides Fit

Native driver support covers Windows 11, 10, 8.1, 8, 7, Vista, XP and macOS 10.6 through 10.7, so most legacy and current systems work without extra software. Buyers running macOS versions newer than 10.7 or Linux distributions without built-in drivers should verify support before purchase. The single RJ45 port serves one wired link; users needing multiple simultaneous Ethernet connections will need a different solution.

Highlights

  • Gigabit wired speed over USB 3.0 5 Gbps bus
  • Driver-free setup on Windows 11, 10, 8.1, 8, 7, Vista, XP and Mac OSX 10.6, 10.7
  • Compact aluminium shell adds RJ45 to Ultrabooks and tablets
  • Wake-on-LAN, full-duplex and auto MDIX supported in hardware
  • USB powered, backward compatible with USB 2.0 and 1.1

Specifications

TypeEthernet Adapter

Questions about this item

Should I pick the USB 3.0 version or the USB 2.0 version?

The adapter is a USB 3.0 device that also works on USB 2.0 and 1.1 ports. On USB 3.0 it can deliver the full 1000Mbps Gigabit rate; on USB 2.0 the bus limits throughput to its own maximum.

What does the 1000Mbps rating actually give me when I plug it in?

It supports 10, 100 and 1000Mbps Ethernet links over the USB 3.0 5Gbps bus. Real-world throughput reaches Gigabit speeds when the host, cable and switch all run at 1000Mbps.

Does the USB 3.0 interface cap the speed in practice?

The USB 3.0 connection provides a 5Gbps bus, well above the 1000Mbps Ethernet ceiling, so the adapter does not throttle the Gigabit link. Use CAT6 or better cable to achieve the rated speed.

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