Gigabit Ethernet Aggregation TAP

With 1 network Connection and 2 Uni-Directional Monitor Connections

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Gigabit Ethernet Aggregation TAP
USR4523 Gigabit Ethernet Aggregation TAP
Span/Regen Mode
Span/Regen Mode
Breakout Mode
Breakout Mode
Install up to 4 taps in the optional 1U rackmount chassis
Install up to 4 taps in the optional 1U rackmount chassis

Multi-purpose TAP for Aggregation, Breakout, and SPAN/Regeneration

The USR Gigabit Ethernet Aggregation TAP eliminates SPAN port contention, oversubscription, and configuration errors with 3 different modes, simple installation, and reliable access to your Gigabit Ethernet segments. In aggregation mode this TAP faultlessly combines and processes both the TX and RX streams of data into a single data stream. Improve visibility with two monitor ports sending identical copies of full-duplex data to separate network tools (analyzer, IDS, probe) for simultaneous monitoring and analyzing. For dual-receive tools, breakout mode is available for individual TX and RX streams. SPAN/Regenerate mode transmits 3 copies of incoming traffic for up to 3 tools. Ideal for security applications, including link failure propagation for HA designed networks, or anywhere you need non-intrusive dedicated access to your network links for advanced or consolidated monitoring.

Monitoring & Analysis

  • Aggregation mode allows monitoring full-duplex traffic, even with single interface monitoring tools
  • Breakout mode allows monitoring full-duplex traffic with RX and TX streams on separate monitoring ports
  • SPAN/Regeneration mode sends copies to multiple tools to provide access to the same links for system redundancy, testing and advanced monitoring applications
  • Improved visibility into the network - including VLAN tags
  • Ideal for Intrusion Detection System (IDS) applications

Aggregating Data

  • Monitor all network traffic from two different sources
  • Improve network troubleshooting by viewing both sides of a full duplex conversation
  • Combine both directions of a full duplex data stream in a single trace file
  • Allows flexibility of monitoring devices, including the option to revert to traditional full duplex dual channel data capture, utilizing single NIC probes for advanced monitoring or hardware reduction

Network Stability

  • Fault-tolerant
  • Ideal for 24x7 permanent access - Deploy tools or utilize tap ports immediately without network traffic interruptions or the need for maintenance windows
  • Eliminate SPAN port contention, oversubscription, and configuration errors
  • Improve overall switch performance by removing port mirror degradation while freeing valuable ports
  • Link Failure propagation for High Availability designed networks ensures instant switch to the secondary link to maintain 100% uptime


  • Unidirectional and invisible to other devices on the network making it impossible to access or infiltrate connected monitoring and analysis tools

Simple installation

  • Plug and play means simple and fast deployments
  • Auto negotiates settings for 10/100/1000 Mbps network speeds
  • Auto-MDI/MDI-X
  • Easy configuration with simple DIP switches
  • Single network break for permanent installation
  • Convenient mounting tabs for use with the optional 1U rackmount kit for up to 4 devices


  • Failsafe inline design allows network connectivity in the event of a power failure


Gigabit Ethernet Aggregation TAP
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MSRP ex Vat: 869.90

Product Code : USR4523
Approved for EU

Additional Availability

United States
Asia Pacific- Not Available
Latin America- Not Available



4-Unit 1U Rackmount kit
MSRP ex Vat: 103.90
USR VersaPower TAP AC Power Supply can be used to replace an original power supply when needed or to provide power for USR USB TAPs when used with USB 2.0 ports that cannot power the unit.
MSRP ex Vat: 43.90

Contact Us

  • Phone (UK):
    +44 (0)808 234 5935