Serial TapI2C/SPI TapEthernet Tap

IO Ninja Ethernet Tap

Ethernet Tap is an affordable sniffer for monitoring Ethernet traffic flowing through a single Ethernet connection. To monitor Ethernet traffic, an Ethernet cable that was initially connecting a switch (hub) to an Ethernet device is replaced by two Ethernet cables and the Ethernet Tap is inserted between them, in what is known as a "wedge" fashion. The Tap passes the Ethernet traffic through with a delay equal to about 5.2uS.

The Ethernet Tap must be used with the Ethernet Tap plugin of IO Ninja software.

Key Features

  • Designed for use with IO Ninja software (
  • Reliably captures 10Base-T and 100Base-T Ethernet traffic.
  • Based on MAX10 FPGA.
  • Six LEDs onboard:
    • Green Ready LED;
    • Green 100Mbps and yellow Link/Activity LEDs for the left RJ45 jack;
    • Green 100Mbps and yellow Link/Activity LEDs for the right RJ45 jack;
    • Blue Power LED.
  • High-speed (480Mbps) USB2.0 interface on a USB-C connector.
  • Supplied with a USB-C cable.
  • USB-powered, no additional external power necessary.
  • Compact, outside dimensions only 82 x 74 x 30 mm.
  • The product is field-upgradeable via the USB interface.


Hardware Manual (HTML)IO Ninja Hardware Manual in HTML format.
Hardware Manual (PDF)This is a PDF version of the IO Ninja Hardware Manual for downloading and printing.

Order the Ethernet Tap

Purchase this product from the IO Ninja web site*.

* is owned and operated by Tibbo Technology Inc.

Serial TapI2C/SPI TapEthernet Tap