USB Data Voice Fax Modem MultiTech 33.6K Super G3 Fax

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

$99.95 $59.95

The MultiTech MT9234MU-CDC-XR data/voice/fax modem is perfect for fax & voice functionality. For healthcare, legal, financial, small/home based businesses and many other industries that rely on fax. Windows 10 Ready.  These modems have an activity/power LED, built in modem speaker for audio call progress and support for Super G3/V.34/33.6K faxing with compatible fax software, so you can fax at the highest speeds available.

We include easy plug & play installation with our digitally signed drivers install package. Compatible with Microsoft Windows 10, 8.1, 8.0, 7, 2012, 2008, 2003, Vista and XP (SP3). 64 bit and 32 bit compatible. Linux supported (USB CDC-ACM)

The MultiTech MT9234MU-CDC-XR fax/voice modem includes one RJ-11 telephone jack and a RJ-11 telephone cable to connect directly to your existing telephone line. We also include a 2 port line splitter/adapter with this modem.

Our refurbished modems are fully tested and flashed to latest version and include easy to install download driver wizard.  6-foot telephone cable and telephone splitter adapter included. FaxTalk software is available separately.

In stock


Refurbished MultiTech MT9234MU-CDC-XR USB Fax Modem

The MT9234MU-CDC-XR Super G3 (V.34/33.6K) refurbished, hardware based USB fax  modem provides reliable voice and fax communication. It’s based on Agere/LSI hardware chipset and can fax using 33.6K (Super G3) high speed. We test and flash each modem to the latest firmware and you’ll receive links for Windows 10 drivers for download. Easy plug and play installation. Drivers are digitally signed for Microsoft Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 2012 R2, 2008 & 2008 R2, 2003, and Windows XP (SP3) in both 64 bit and 32 bit versions. Caller ID supported (U.S. Bellcore Type 1 only). The MT9234MU-CDC-XR is fully tested and flashed to latest firmware prior to shipping.


  • USB (type-A Male)
  • 1 RJ-11 (common telephone/dial-up modem interface)

Supported Features

  • ADPCM voice compression
  • Supports Distinctive Ring service from your phone company.
  • Super G3 Fax
  • Class 1, 1.0, 2.0, 2.1 V.34/33.6K Super G3 fax modem support and Class 8 IS 101 voice support
  • Digital Answering Machine (with optional software)
  • On/Off hook control
  • Call Progress Monitor (built-in hardware speaker) with software toggle
  • Silent Voice Hang up detection
  • Installs Unimodem Full Duplex Audio driver for Microsoft Windows 10,8,7
  • DTMF detection and generation
  • Voice/Fax/Modem Distinction
  • 4 LEDs for Modem Status (Off hook, Data, Transmit, Carrier Detect)
  • CDC-ACM compliant
  • Driver installation support for Microsoft Windows, Linux and Macintosh operating systems
  • V.92/56K downloads (from V.92 servers) and 33.6K data rates for uploads or peer-to-peer transfers
  • V.44 compression improves data throughput rates
  • Error Correction Mode (ECM) provides fast and reliable fax transmissions
  • U.S. Caller ID reporting (Bellcore Type 1)
  • Remote configuration for centralized setup and management
  • Storage for two phone numbers for automatic dialing
  • Global approvals in many countries for worldwide use
  • Hot-swappable with other USB devices – no restarting or re-configuring your PC
  • Integrated USB cable simplifies setup and operation
  • on board flash memory for easy updates


  • FaxTalk FaxCenter Pro® (v.34 33.6K Fax supported)
  • FaxTalk Messenger Pro® (v.34 33.6K Fax and Voice)
  • FaxTalk Multiline Server® (v.34 33.6K Fax and Voice)
  • Symantec WinFax PRO® 10 (v.17 14.4K Fax only)
  • Microsoft Windows Fax & Scan (V.17 14.4K Fax only)
  • PhoneTray Pro (Caller ID monitoring software (see note on Caller ID))
  • NetZero and Juno Internet Dial Up (data)
  • Win-911 (Alarm notification software)
  • CALLER ID Support for Bell Core Type 1 only. Caller ID may not support some VoIP services, some Canadian phone companies, and locations outside North America.

Notes: Mt9234mu-cdc-xr is REFURBISHED in new condition with 180 day warranty from Item shipped with no retail CD drivers or packaging. Modem Software Drivers and documentation/manuals are available as a download with your purchase. Linux or Mac drivers can be downloaded but are not included or supported by us.


Delivery charge will be added to your order for domestic or international shipping. This item will arrive as a separate shipment from our software CD orders. Modem Software Drivers and documentation/manuals are available as a download with your purchase.

Windows 10 Compatible


Additional information

Weight 0.150 kg
Dimensions 15 x 11 x 3.5 cm
Software Compatibility

FaxTalk FaxCenter Pro, FaxTalk Messenger Pro, FaxTalk Multiline Server, Symantec WinFax PRO 10, PhoneTray Pro, Windows Fax and Scan, Win 911, NetZero, Windows Dial Up Networking


180 days (6 months) repair or replace warranty

OS Support

Windows 10, Windows 8.x, Windows 7, Windows Vista, Windows 2012 Server, Windows 2008 Server, Windows 2003 Server, Windows XP (SP3), Linux (CDC/ACM Compliant)

1 review for USB Data Voice Fax Modem MultiTech 33.6K Super G3 Fax

  1. Rated 5 out of 5


    Excellent quality built modem supporting Windows 10 and earlier Windows OSes (Windows XP service pack 3 and up). Has a built-in speaker for audio progress (can be toggled on/off via software). Also supports Super G3/V.34 Faxing speeds with FaxTalk and some other compatible fax software. Works with FaxTalk, WinFax PRO, Windows Fax & Scan and others. Juno, NetZero, AOL, Earthlink etc. dial-up.

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