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Small black USB-A dongle with short cable and RJ45 port

Cable Matters 202023-BLACK USB 2.0 to Ethernet Adapter 10/100 Mbps Black

SKU CH-12FS-21W9D

Adds 10/100 Mbps wired Ethernet via USB 2.0 with PXE and Wake-on-LAN support for Windows, macOS, Linux, and Chrome OS

  • ColorBlack
  • Weight1.13 ounces
  • Adds 10/100 Mbps wired Ethernet to laptops without a built-in port
  • Driver-free setup on Windows, macOS, Linux and Chrome OS for instant connectivity
  • Weighs 1.13 ounces with a short cable tail for easy travel
  • Supports PXE boot, Wake-on-LAN and MAC address cloning for managed networks
  • USB 2.0 interface provides stable 100 Mbps link without needing USB 3.0

Wired LAN Adapter for USB-A 2.0 Ports

This compact USB to Ethernet adapter adds a 10/100 Mbps RJ45 port to laptops, desktops, or a Raspberry Pi 3. It draws power from the USB-A 2.0 connection and requires no external supply. Driver-free installation works on Windows, macOS, Chrome OS, and Linux. The six-inch cable tail and lightweight build suit travel or permanent desk use.

Suits Restoring Wired Connectivity on Legacy Systems

Buyers needing a simple replacement for a failed onboard Ethernet port on an older computer will find this adapter fits the purpose. It also serves well for devices lacking a built-in network jack where only 100 Mbps throughput is required. Users who need Gigabit speeds, USB-C or USB 3.0 connectivity, or Power Delivery pass-through should look at a different adapter class.

10/100 Mbps Fast Ethernet Speed Rating

The adapter negotiates at 10BASE-T or 100BASE-TX link rates, capping wired throughput at 100 Mbps. This single specification determines whether the device matches the network infrastructure and performance expectations of the installation.

Highlights

  • Adds 10/100 Mbps wired Ethernet to laptops without a built-in port
  • Driver-free setup on Windows, macOS, Linux and Chrome OS for instant connectivity
  • Weighs 1.13 ounces with a short cable tail for easy travel
  • Supports PXE boot, Wake-on-LAN and MAC address cloning for managed networks
  • USB 2.0 interface provides stable 100 Mbps link without needing USB 3.0

Specifications

BrandCable Matters
Model202023-BLACK
ColorBlack
Weight1.13 ounces

Questions about this item

How can I verify the adapter is working after plugging it into my laptop?

The diagnostic LEDs on the adapter show power, link, and data status so you can confirm an active 10/100 Mbps connection.

What comes in the box and do I need any extra cables?

The package includes the USB 2.0 to Ethernet adapter with a 6-inch cable tail; you supply your own RJ45 network cable to reach the router or switch.

Should I choose this 10/100 Mbps model or the 202013 Gigabit version?

Choose this adapter when you only need 100 Mbps Fast Ethernet over USB 2.0; choose model 202013 if you require Gigabit speeds over USB 3.0 or USB-C.

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