Quick-start guide
USB 2.0 to 100Mbps Ethernet Network Adapter - Open SFP
US100A20SFP
DE: Bedienungsanleitung - de.startech.com
FR: Guide de l'utilisateur - fr.startech.com
ES: Guía del usuario - es.startech.com
IT: Guida per l'uso - it.startech.com
NL: Gebruiksaanwijzing - nl.startech.com
PT: Guia do usuário - pt.startech.com
Package contents
• 1 x network adapter
• 1 x quick-start guide
Requirements
• USB-enabled computer with an available USB 2.0 port
• Any of the following operating systems:
• Microsoft Windows® 10, 8/8.1, 7
• Microsoft Windows Server® 2012, 2008, 2003
• macOS El Capitan (10.11), Yosemite (10.10), Mavericks (10.9),
Mountain Lion (10.8)
• Linux® kernel 3.5 to 4.11.x, LTS versions only
• 100Mbps SFP transceiver with your desired network connection
Operating system requirements are subject to change. For the latest
requirements, please visit www.StarTech.com/US100A20SFP.
Product diagram
Power LED
*actual product may vary from photos
For the latest information, technical specifications, and support for
this product, please visit www.StarTech.com/US100A20SFP
Built-in USB 2.0
SFP slot
Link and activity LED
Installation
Notes:
• You may need to restart your computer during the software
installation process. Be sure to save any unsaved material before
you install the software.
• If you're running Windows 7 (or lower), macOS or Linux, ensure
the network adapter is not connected to your computer until after
driver installation.
1. If you're running Windows 7 (or lower), macOS or Linux, download
the latest software from the StarTech.com website:
http://www.StarTech.com/US100A20SFP.
Note: If you're running Windows 8 (or later) proceed to step 5.
2. The software that corresponds with your operating system will be
compressed in a .zip folder. Download and extract the contents
of that folder to a location on your computer that's easy to access,
such as your Desktop or Downloads folder.
3. Open the folder that corresponds with your specific operating
system and launch the installer file.
4. Follow the on-screen prompts to complete the installation, and if
instructed to do so, restart your computer.
5. Insert your 100Mbps SFP transceiver into the SFP slot on the card.
6. Connect a network interface cable to the SFP transceiver and to
your network.
7. Connect the built-in USB 2.0 cable to a USB port on your
computer.
About the LED indicators
The network adapter features two LED indicators:
• The Power LED illuminates to indicate that the adapter is receiving
power from the computer that it's connected to.
• The Link and activity LED illuminates solid to indicate a network
cable
connection link and blinks to indicate that data is being sent or
received.
Manual Revision: 11/30/2017
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