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Black USB-C to RJ9 adapter cable with 1.8m length

STARTECH

STARTECH UR9-HEADSET-ADAPTER USB-C to RJ9 telephone accessory

SKU CH-3E1Q-JGT5J MPN UR9-HEADSET-ADAPTER

Connects an RJ9 headset to a USB-C device with a 1.8 m cable for clear mono audio across Windows, macOS, Android and iOS

  • Connect RJ9 headsets to USB-C devices for VoIP calls
  • 32-bit processor delivers 8 to 96 kHz mono audio clarity
  • 8 m cable allows flexible routing during calls
  • Plug-and-play with Windows, macOS, Android, iOS, iPadOS
  • Two-year coverage with 24/5 multi-lingual technical assistance

USB-C to RJ9 Adapter for Landline Headsets

Connect an RJ9 office phone handset or headset to a USB-C laptop, desktop or mobile device for calls and video conferences. The 1.8 m cable gives flexible routing for a tidy setup and freedom of movement during calls. Plug-and-play operation works with Windows, macOS, Android, iOS and iPadOS. Extend the lifespan of existing landline hardware without extra software.

USB 2.0 Interface Limits Data Speed to 480 Mbps

The adapter uses a USB 2.0 connection with a 24-pin USB-C plug, so bandwidth is capped at 480 Mbps. Audio is processed by a 32-bit processor running at 8 to 96 kHz for clear mono output. No additional drivers are required on supported operating systems. The RJ9 jack carries analog handset signals only and does not support stereo or microphone arrays.

RJ9 Jack Determines Headset Compatibility

The single RJ9 port accepts standard landline handset or headset connectors wired to the published pinout. Compatibility is confirmed with Sennheiser EPOS UI760 and Plantronics Poly Vista M22 amplifiers. Devices with different jack types or proprietary wiring will not connect. Check the pinout details before purchase to ensure the adapter matches your headset.

Highlights

  • Connect RJ9 headsets to USB-C devices for VoIP calls
  • 32-bit processor delivers 8 to 96 kHz mono audio clarity
  • 8 m cable allows flexible routing during calls
  • Plug-and-play with Windows, macOS, Android, iOS, iPadOS
  • Two-year coverage with 24/5 multi-lingual technical assistance

Specifications

No published specifications for this item yet.

Questions about this item

Should I pick the 6 ft or a shorter cable length?

The adapter ships with a single 6 ft (1.8 m) cable; no alternative lengths are offered for this model.

What does the 32-bit 96 kHz processor do for my calls?

It provides clear mono audio at up to 96 kHz sample rate for reliable VoIP call quality.

Does the USB-C connector support USB 3.0 speeds?

The USB-C plug uses USB 2.0 at 480 Mbps, which is sufficient for the audio signal.

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