1-Port USB 3.2 Gen 1 Type-C 10m Extender System

Icron USB 3-2-1 Starling 3251C Extender SystemThe Icron USB 3-2-1 Starling™ 3251 is the world’s first USB 3.2 Gen 1 extender utilizing a custom CM or Plenum fire rated cable with ExtremeUSB-C™ technology, extending USB 3, 2 and 1 devices simultaneously up to 10 meters. The Starling 3251C is used to extend high-resolution USB 3 conferencing cameras, Video Capture devices, USB 3 and USB  2 flash drives, hard drives, keyboards, mice, interactive white boards, touchscreens, audio devices, and many other USB 3, 2 and 1 devices.

2022 Innovative Products Winner by SVCSVC

2021 BEST Awards logo

Recipient of both the 2022 SVC Innovative Products Award from Sound and Video Contractor and the 2021 BEST Award (Best Electronics Systems Technologies) from Commercial Integrator, makes Starling 3251C the definitive choice for short-distance USB3 Type-C extension. 

For USB 3 applications requiring longer distance extension, consider these models: USB 3-2-1 Raven 3204CUSB 3-2-1 Raven 3204C Pro or USB 3-2-1 Raven 3124 extenders. 


The Icron USB  3-2-1 Starling™ 3251C is the world’s first backwards compatible USB 3.2 Gen 1 extender allowing users to extend USB 3.2 Gen 1 (5Gbps) device types as well as USB 2.0 and 1.1 devices across a custom 10m Cable while being completely USB BUS powered. The Starling 3251C comes with Plenum or CM fire rated cables. Applications include extending USB 3 conferencing cameras, video capture devices, and audio devices for boardrooms and conference rooms. The Starling extender series has been successfully tested with most major USB 3.1 conferencing cameras in conjunction with major UC conferencing applications (Zoom, Teams, Webex, Hangouts Meet).

This 1-port USB 3.2 Gen extender supports data rates at up to 5Gbps and is plug and play – no software drivers required – for all major operating systems: Windows®, macOS, Linux® and Chrome OS™.

Additionally, this ExtremeUSB-C™ based USB 3.2 Gen 1 extender system is FCC/CE Class A certified and, being backward compatible, is ideal for use with all USB peripherals in addition to USB 3.2 Gen 1 conference cameras including: flash drives, hard drives, keyboards, mice, interactive white boards, touchscreens, audio devices, and other USB 3, 2 and 1 devices.


  • USB 3.2 Gen 1 data rate up to 5Gbps
  • Supports all USB 3.2, 2.0, 1.1 devices simultaneously at full bandwidth
  • USB-C port connectivity (USB data only)
  • Bus-powered with optional DC input
  • Single 10-meter CM or Plenum-rated cable
  • FCC and CE (Class A) compliant
  • Two year warranty
  • ExtremeUSB-C suite of features:
    • Transparent USB extension supporting USB 3, 2 and 1
    • True plug and play; no software drivers required
    • Works with all major operating systems:  Windows®, macOS™, Linux® and Chrome OS™



  • Point-to-point 10 meters (32.8 feet) using included Cable


  • USB 3.2: up to 5Gbps
  • USB 2.0: up to 480Mbps
  • USB 1.1: up to 12Mbps

LEX (Local Extender)

  • 1x USB 3.2 Gen 1 Type-C Receptacle
  • 1x ARJ45 Link Port
  • Maximum wattage: 15W (5V 3A) USB or Self-Powered
  • 5V 3A DC Jack (Power Supply sold separately)
  • Enclosure Material: Silver anodized aluminum
  • Dimensions: 86.0 x 45.0 x 24.0mm (3.4″ x 1.8″ x 0.9″)
  • 80g (0.18 lbs.)
  • Mounting: 4 surface mounting holes or optional mounting kit available

REX (Remote Extender)

  • 1x USB 3.1 Gen 1 Type-C Port
  • 1x ARJ45 Link Port
  • Available Current: up to 900mA
  • Enclosure Material: Silver anodized aluminum
  • Dimensions: 86.0 x 45.0 x 24.0mm (3.4″ x 1.8″ x 0.9″)
  • 90g (0.20 lbs.)
  • Mounting: 4 surface mounting holes or optional mounting kit available


  • 10 m (33 ft) Custom active copper cable
  • Safety rating: Plenum or CM versions available
  • Bend radius (minimum) : 35 mm (1.4”)
  • Conduit Diameter (minimum) : 19 mm (3/4″ conduit)
  • ARJ45 connector width: 13 mm (0.5”)
  • Cable Dia. : 7.6 mm (0.3”)
  • Pull Tool width: 18 mm (0.7”)


  • Operating Temperature: 0C to 50C (32F to 122F)
  • Storage Temperature: -20C to 70C (-4F to 158F)
  • Operating Humidity: 20% to 80% relative humidity, non-condensing
  • Storage Humidity: 10% to 90% relative humidity, non-condensing


  • EMC: FCC (Class A), CE (Class A)
  • Environmental: RoHS2/3, (CE) REACH, Conflict Minerals


  • Warranty: 2-year

In the Box

The Starling 3251C extender system includes:

  • Local Extender (LEX)
  • Remote Extender (REX)
  • USB 3.2 Gen 1 USB-C Cable
  • Custom Link Cable (10m, CM or Plenum-Rated)
  • Cable Pulling Eye
  • Quick Start Guide
  • Two year warranty


      • Remote Storage
      • Security & Monitoring
      • Conferencing Cameras
      • Test and Measurement

Icron Starling 3251C application diagram