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Product Status Discontinued on 5/2/2024


Connects Your USB Device to a Wired Ethernet Network without an Internet Card Installed
This USB to Ethernet adapter allows you to instantly connect your computer, laptop, tablet or other USB-compatible device to a wired 10/100 Mbps fiber optic network, even if your device has no NIC (Network Interface Controller) installed. The adapter offers access to an Ethernet network when Wi-Fi is unavailable or when a wired connection offers faster speeds. It transmits data up to 20 kilometers (12.4 miles) from your fiber network using a 1310 nm wavelength.
Hot-Swappable for Installation Without Network Interruption
This USB 2.0 Ethernet adapter is fully hot-swappable, so you can install it without a potentially costly network shutdown or device reboot. Just connect the built-in USB cable to your device’s USB port (which also powers the adapter), and wait for the installation process to finish (you may have to reboot your computer). Then, connect the LC duplex port using existing or newly run singlemode fiber cable (such as N370-Series, sold separately). 
Delivers Full Ethernet Performance with Audio and Video Streaming
The compact USB to Ethernet adapter supports full 10/100 Mbps network speeds and USB 2.0 speeds, allowing you to transfer data efficiently and stream audio and video. The direct fiber connection minimizes the risk of data leaks and electromagnetic interference (EMI). A blue LED indicates successful Ethernet connection and data transfer. The adapter works with Windows operating systems and is backward compatible with USB 1.1 devices.

System Requirements

  • Computer or laptop with USB-A port (USB 2.0 compatibility required to achieve USB 2.0 speeds)
  • Windows (through Win 10) operating system

Package Includes

  • U236-SMF-LC USB 2.0 Ethernet NIC Adapter
  • Driver CD
  • Quick Start Guide
RoHS compliant


UPC Code037332248480
TechnologyUSB 2.0 (High Speed)
Mode TypeSinglemode
Built-In Cable Length (in.)6.1
Bus Powered  Yes
Side A - Connector 1USB A (MALE)
Side B - Connector 1LC DUPLEX (FEMALE)
Connector PlatingNickel
LED IndicatorsBlue (Power/Data)
Material of ConstructionABS, PVC
Cable Jacket RatingVW-1
Unit Dimensions (hwd / in.)0.710 x 2.200 x 1.610
Unit Packaging TypeBox
Unit Weight (lbs.)0.12
Operating Temperature Range32° to 131°F (0° to 55°C)
Storage Temperature Range32° to 140°F (0° to 60°C)
Relative Humidity5% to 90 % RH, Non-Condensing
Network Compatibility100 Mbps (Fast Ethernet)
Transmission Distance20km
USB SpecificationUSB 2.0 (up to 480 Mbps)
Remote Wakeup SupportYes
Driver RequiredYes
Optical PortLC
Product ComplianceRoHS; CE (Europe); REACH; FCC (USA)
Product Warranty Period (Worldwide)3-year limited warranty

Questions & Answers

Need help with your purchase?
We're always available to help with questions, including product selection, sizing, installation and product customization. Call us at +1 773-869-1776 or email