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White portable USB 3.0 to Gigabit Ethernet adapter with foldable RJ45 port

TP-Link

TP-Link UE300 USB 3.0 to Gigabit Ethernet Adapter

SKU CH-KN40-9EWF5 MPN UE300

USB 3.0 adapter adds a Gigabit RJ45 Ethernet port for stable wired networking on laptops and desktops

  • TypeAdapter
  • ColorWhite
  • SpecificationsOutput Interface: 1 x 10/100/1000 Mbps RJ45 Ethernet Port In
  • FeaturesFastest USB 3.0 and Gigabit solution ensure high speed trans

Option UE300

  • Turn any USB 3.0 port into a Gigabit RJ45 Ethernet connection
  • Achieve full 10/100/1000 Mbps wired speeds over USB 3.0
  • Driver-free setup on Windows XP+, macOS 10.9+, Chrome OS and Linux
  • Foldable 0.6" x 2.8" x 1.00" design fits in any laptop bag
  • Backwards compatible with USB 2.0 and USB 1.1 ports

USB 3.0 Gigabit Adapter

The TP-Link UE300 adds a 10/100/1000 Mbps RJ45 Ethernet port to any computer through a USB 3.0 connection. It targets laptop and desktop users who need a stable wired link instead of relying on wireless. The adapter uses the Realtek RTL8153 chipset for broad operating-system support. Its foldable design keeps the connector protected during transport.

Compatibility Check

Verify that your device has a free USB 3.0 Type-A port; the adapter is backwards compatible with USB 2.0 and 1.1 at reduced speed. Driver-free installation works on Windows XP and later, macOS 10.9 and later, Chrome OS and Linux. Mac OS X 10.5 through 10.8 require a separate driver download. The product does not support Nintendo Switch, Wii U or Wii consoles.

Build and Daily Use

The white plastic housing measures .60 by 2.80 by 1.00 inches and folds to shield the USB plug when not in use. A single RJ45 port accepts standard twisted-pair cables for 10/100/1000Base-T networks. IEEE 802.3az Energy Efficient Ethernet reduces power draw during low-traffic periods. The package includes the adapter and a quick installation guide. RoHS certification confirms compliance with restricted-substance rules.

Highlights

  • Turn any USB 3.0 port into a Gigabit RJ45 Ethernet connection
  • Achieve full 10/100/1000 Mbps wired speeds over USB 3.0
  • Driver-free setup on Windows XP+, macOS 10.9+, Chrome OS and Linux
  • Foldable 0.6" x 2.8" x 1.00" design fits in any laptop bag
  • Backwards compatible with USB 2.0 and USB 1.1 ports

Specifications

BrandTP-Link
ModelUE300
TypeAdapter
ColorWhite
SpecificationsOutput Interface: 1 x 10/100/1000 Mbps RJ45 Ethernet Port
Input Interface: 1 x USB 3.0 Port
Dimensions: 0.60" x 2.80" x 1.00"
FeaturesFastest USB 3.0 and Gigabit solution ensure high speed transfer rate.
Plug and Play in Windows (XP or later), Mac OS X (10.9 or later), Linux OS.
Note: Driver required for Mac OS X (10.5-10.8) Foldable and Portable design ideally suits your Ultrabook
Shipping weight0.07 kg
Package size170 × 81 × 15 mm

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Questions about this item

Does the UE300 come with a cable or do I need to supply my own Ethernet lead?

The package contains the USB 3.0 to Gigabit Ethernet adapter and a quick installation guide; a separate RJ45 cable is required to reach your router or switch.

My laptop only has USB 2.0 — will the UE300 still work at reduced speed?

Yes, the adapter is backwards compatible with USB 2.0 and USB 1.1, so it will function but limited to the host port's maximum throughput.

What real-world throughput can I expect when the adapter is plugged into a USB 3.0 port on a desktop?

The UE300 supports 10/100/1000 Mbps Ethernet negotiation, so actual speeds depend on your network infrastructure and the USB 3.0 host controller performance.

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