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Compact USB 2.0 to RJ45 Ethernet adapter with LED indicators

EN-Labs

EN-Labs U2RJ458150 USB 2.0 to 100 Mbps RJ45 Ethernet Adapter

SKU CH-S925-KBSZR

Adds a 10/100 Mbps RJ45 port over USB 2.0 for wired networking on Windows, Mac, Linux and Chrome OS devices

  • First connector1x USB 2.0 male
  • Second connector1x 100 Mbit/s Ethernet female
  • Key featuresUSB 2.0 to RJ45 Ethernet adapter connects your computer or t
  • Adds wired Ethernet to devices lacking a port
  • 10/100 Mbps speeds over USB 2.0's 480 Mbps bus
  • Works with Windows, Mac, Linux and Chrome OS
  • USB powered — no external adapter needed
  • Compact design for travel and port protection

USB 2.0 to 100 Mbps Ethernet Adapter

This EN-Labs adapter adds a wired RJ45 network port to any device with a USB 2.0 socket. It delivers 10 or 100 Mbps auto-negotiated Ethernet over the USB 2.0 bus and draws power from the port itself. Link and activity LEDs show the connection status at a glance.

For laptops and tablets lacking a built-in LAN port

The adapter suits ultrabooks, MacBook Air models, Surface devices and Chromebooks that need a stable wired link for file transfers, video calls or gaming. It works with Windows 7 through 10, macOS, Linux kernels 2.6 and 3.x, and Chrome OS. Buyers whose hardware only offers USB 2.0 but who require gigabit wired speeds cannot use this adapter.

Limited to 100 Mbps Fast Ethernet

The single decisive specification is the 100 Mbps maximum throughput on the RJ45 side. While the USB 2.0 interface runs at 480 Mbps, the Ethernet MAC caps the link at 100 Mbps, so the adapter cannot saturate a gigabit or faster internet connection. Check that your network infrastructure and speed tier match this ceiling before purchase.

How it compares

Measured against everything we stock in USB Adapter Cables & Dongles, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 93% of the 1,430 comparable items (median $14.99).

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Specifications

Product
Brand nameEN-Labs
Model nameU2RJ458150
Ports & slots
First connector1x USB 2.0 male
Second connector1x 100 Mbit/s Ethernet female

Questions about this item

Which EN-Labs U2RJ458150 variant should I pick?

The product is offered as a single model, U2RJ458150, with one USB 2.0 male connector and one 100 Mbps RJ45 female port; no capacity or version options exist.

What does the 100 Mbps rating mean when I plug it into my laptop?

It delivers up to 100 Mbps wired Ethernet throughput over the USB 2.0 bus, which runs at 480 Mbps, so the adapter caps the link at Fast Ethernet speeds.

What interface does it use and what speed does that limit me to?

It uses a USB 2.0 connection, whose 480 Mbps bus bandwidth limits the practical network rate to the adapter's 100 Mbps Fast Ethernet maximum.

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