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I-TEC - complete portfolio of accessories for laptops and desktops - external enclosures, video and audio adapters, card readers, power supply adapters etc.


1x USB-C to RJ-45, Compatible with Thunderbolt 3


Product Description


The i-tec G31GLAN USB-C to RJ-45 GLAN adapter allows you to create a wired internet connection via the USB-C port on your PC, notebook, tablet or smartphone. Supporting 10/100/1000 Mbps speeds, the adapter provides a reliable, robust and high-speed internet connection when a wireless signal is unavailable or insufficient, allowing the completion of large downloads or data transfer without fear of interruption.

Compatible with Thunderbolt3, the USB-C interface supports a data transfer rate of up to 10 Gbps and is more user-friendly that its predecessor, USB-A 3.0. The USB-C plug is entirely reversible, making it easier to work with, as well as significantly reducing the risk of plug or port damage.

The adapter is powered via the USB port and requires no driver download – simply plug & play. The compact design makes the adapter an ideal accessory for mobile use, as well as at home or in the office.


Product Overview & Features


  • Create a wired internet connection via the USB-C port on your PC, notebook, tablet or smartphone
  • Compatible with Thunderbolt3
  • USB-C interface supporting data rate transfer up to 10 Gbps
  • Powered through USB port - no power adapter is required
  • Supports 10/100/1000 Gbps network speeds
  • Supports Wake-on-LAN
  • Up to 9K Jumbo frame support
  • IEEE 802.3az (Energy Efficient Ethernet) compatible
  • Supports IPv4 and IPv6 pack Checksum Offload Engine (COE) to reduce CPU loading
  • Automatic detection of MDI / MDIX crossover
  • Supports Windows 7 32/64bit, Windows 8 32/64bit, Windows 8.1 32/64bit, Windows 10 32/64bit, Mac OS, Linux &Android 


For further information regarding set-up or for answers to FAQ’s, please visit our website www.i-tec-europe.eu. Specifications are subject to change without notice.


  • Expand your notebook, tablet or PC with new USB-C or Thunderbolt 3 connector to Gigabit Ethernet port for high speed internet access
  • 1x USB-C 3.1 connector, transfer rate up to 10 Gbps, for connecting to a notebook, tablet or PC
  • Fast network and Internet access with Gigabit Ethernet connection, 1x Ethernet GLAN RJ-45 port supports 10 / 100 / 1000 Mbps speeds
  • Supports Wake-on-LAN, Jumbo frame up to 9k bytes, detection of cable crossover MDI / MDIX
  • Support IEEE 802.3az (Energy Efficient Ethernet) and IPv4/IPv6 pack Checksum Offload Engine (COE) to reduce CPU loading
  • Powered through USB bus, no power adapter is needed
  • OS: Windows 7 32/64bit, Windows 8 32/64bit, Windows 8.1 32/64bit, Windows 10 32/64bit, Mac OS, Linux, Android
  • Product dimensions: 66 x 20 x 15 mm
  • Product weight: 19 g
  • Packaging dimensions: 154 x 100 x 20 mm
  • Packaging weight: 50 g



Hardwarové requirements: Notebook, tablet, PC with free USB-C or Thunderbolt 3 port


Operating system: Windows 7 32/64bit, Windows 8 32/64bit, Windows 8.1 32/64bit, Windows 10 32/64bit, Mac OS, Linux, Android



  • i-tec USB-C Gigabit Ethernet adapter with cable (15 cm)
  • Quick Start


Product Part Numbers


i-tec Part Number                                                             Product Description & EAN


USB-C Gigabit Ethernet Adapter

EAN 8595611701504






Hardware & Performance

Bus Type


Interface RJ-45 Gigabit Ethernet
Compatible Networks 100/100/1000 Mbps
Max. Data Transfer Rate 10 Gbps




Power Source




Physical Characteristics



Housing Material


Product Dimensions (l x w x h)

66 x 20 x 15 mm

Product Weight (excl. packaging)

19 g

Product Weight (incl. packaging)

69 g

Packaging Dimensions

154 x 100 x 20 mm



After Sales Service

Warranty Period

2 years

Technical Support

Product Lifetime



Package Contents

1x USB-C Gigabit Ethernet Adapter (cable length 15 cm)

1x Quick Start Guide

User's Guide

LAN does not work on Mac OS:
If you are using MacOS operating system (especially Sierra 10.12), please download the drivers for LAN port in the "Download" tab.

Question: All is OK, only Ethernet speed on adapter is displayed 100 Mbps or 10 Mbps, where is problem?
Answer: Please verify all cabling between notebook / PC and active Ethernet device (HUB, switch, router) and firmly plug in all RJ-45 connectors. Maybe help you exchange Ethernet cable between notebook / PC and active device for certificated one.


Question: There are LAN failures in macOS.

Answer: Drivers are installed automatically from the system. However, it may be that the automatic installation is not performed correctly. In this case, please install the drivers from the „Download“ tab. Caution: Only install the drivers in case of trouble!


webmaster: i-Pages - www.i-pages.cz © Copyright - i-tec Technologies s.r.o., Teslova 2, 702 00 Ostrava, tel.: +420 596 637 130

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