STARTECH 

STARTECH UR9-HEADSET-ADAPTER USB-C to RJ9 Adapter/Dongle

Mfg Part Number:  UR9-HEADSET-ADAPTER  
Image may not reflect the actual item.
Price: $42.75
Quantity:
In Stock: 1035
Last Updated: Apr 30, 2026
No Sales Tax except these states
, PO and Wire.

The USB-C to RJ9 adapter is essential for connecting traditional telephone handsets or headsets to laptops, desktop computers, and mobile devices. This versatile adapter cable enables seamless integration of legacy equipment with contemporary technology.

Compatibility

The plug-and-play functionality on Windows, macOS, Android, iOS, and iPadOS supports using professional-grade telephone headsets with PCs, Macs, and even smartphones, providing a cost-effective solution for businesses and individual users. Compatible with Sennheiser/EPOS UI760 Headset Amplifier and Plantronics/Poly Vista M22 Phone Amplifier on popular communication VoIP platforms.

Versatility

This cable dongle is ideal for those transitioning from landline systems to softphone applications or for users who prefer the comfort and reliability of their existing telephone hardware. The 6ft (1.8m) long cable enables flexible routing around a workstation, minimizing clutter and maintaining a neat setup.

Main Specification
General Information
Manufacturer StarTech.com
Manufacturer Part Number UR9-HEADSET-ADAPTER
Manufacturer Website Address http://www.startech.com
Brand Name StarTech.com
Product Name RJ-9/USB-C Phone Cable
Packaged Quantity 1
Product Type Phone Cable
Technical Information
Cable Type RJ-9/USB-C
Cable Length 5.91 ft
Connector Type on First End USB 2.0 Type C - Male
Connector Gender on First End Male
Connector on First End Details 1 x 24-pin USB 2.0 Type C - Male
Connector Type on Second End RJ-9 Phone - Male
Connector Gender on Second End Male
Connector on Second End Details 1 x RJ-9 Phone - Male
Device Supported Smartphone
Device Supported Handset
Device Supported Amplifier
Device Supported VoIP Device
Device Supported Workstation
Device Supported Desktop Computer
Device Supported Telephone
Device Supported Headset
Device Supported Mobile Device
Device Supported Wireless Headset
Device Supported MAC
Device Supported PC
Device Supported Phone
Device Supported Notebook
Data Transfer Rate 480 Mbit/s
Features Plug & Play
Features Flexible
Physical Characteristics
Color Family Black
Product Color Black
Height 0.4"
Width 5"
Weight (Approximate) 0.11 lb
Miscellaneous
Operating System Compatibility iOS
Operating System Compatibility Windows
Operating System Compatibility Android
Operating System Compatibility macOS
Application/Usage Office
Application/Usage Business
Compatibility

Sennheiser/EPOS UI760 Headset Amplifier

Plantronics/Poly Vista M22 Phone Amplifier

Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
Warranty
Limited Warranty 2 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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