Black Box 1-800-316-7107 



MultiTech MultiModem ZDX V.92 Modem

Surf and download at the highest dialup speed possible: 56 kbps.


Please call 877-877-2269 for a replacement product or part.
10 Year Double Diamond™ Warranty (Standard)

Product Features

  • Works with dialup lines for connectivity at56 kbps.
  • Sends faxes at 14.4 kbps.


  • Supports asynchronous data.
  • V.44 data compression delivers the fastest data throughput.
  • Includes data and fax software for Windows.
  • Plug-and-play operation.
  • Automatically detects data rates and answers calls.
  • Includes Caller ID.
  • Features phone number storage for automatic dialing.
  • Modem on-hold capability.
  • Self-resetting lightning protection.
  • Small footprint and stackable design makes it ideal for UNIX®, medical, and retail POS applications.
  • Can be used with the Multi-Tech® ZDX Modem Rack (ZDXRACK-INTL).
  • Treat yourself to one of the best and most reliable data/fax modems you can buy. With the MultiModem ZDX, you can surf the Internet, send data and e-mails, and transfer documents and more at the fastest dialup speed possible: 56 kbps. Plus, you can send and receive faxes at 14.4 kbps.

    Easy to drive.
    The MultiModem ZDX is super easy to use. It's virtually plug and play. An integrated "virtual modem drive" differentiates between incoming data and fax calls and automatically starts up the appropriate Windows® software. It also automatically detects data rates and answers calls. This ensures optimum file transfer conditions with asynchronous high-speed communications.

    Watch for slow-moving vehicles.
    The modem slows down automatically for older equipment, too. This also gives you the ability to exchange faxes with almost any fax machine, card, or modem in the world.

    Designed for convenience.
    The modem features Caller ID and an on-hold capability. That way you can put your modem transmission on hold for up to 16 minutes while you talk on the phone. The modem also features phone number storage for automatic calling.

    Put it on the rack.
    Depending on your application, you can rackmount the MultiModem ZDX. The modem has a rackmountable chassis that consolidates space and power for up to 12 modems when using the Multi-Tech ZDX Modem Rack (ZDXRACK-INTL).

    Tech Specs

    CE Yes
    Connectors (1) DB25 F, (2) RJ-11
    Data Rates Data: V.92: 56-kbps download; 48-kbps upload; V.90: 56-kbps download; 33.6-kbps upload; Fax: 14.4 kbps
    Diagnostics Local or Remote loop, autotest
    Dimensions 1"H x 4.3"W x 5.7"D (2.5 x 10.9 x 14.5 cm)
    Flow Control X-ON/X-OFF, RTS/CTS
    Indicators (10) LEDs: (1) each for TX, RX, CD, OH, TR, EC, Fax; (3) Data Rate
    Operation Full-duplex asynchronous serial on a switched network
    Power 115 VAC, 60 Hz
    Standards Data: V.92, V.90, K56flex™, V.34+; Error correction: V.42; Fax: V.17, Group 3; Class 1, Class 2; Data Compression: V.42 bis, MNP® Class 5
    System Support Windows 95/98/Me/XP, Windows NT®, Windows 2000, Windows 2003, SCO OpenServer, Linux, and others
    Weight 0.5 lb. (0.2 kg)
    Although these faxmodems are capable of 56-kbps downloads, FCC regulations limit download speeds to 53 kbps.

    * Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.


    Double Diamond Warranty Diamond

    Double Diamond™ Warranty (Standard)

    Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

    The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    The MultiModem ZDX V.92 Modem comes with a standard 10 Year Double Diamond™ Warranty (Standard) already included.

    During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

    Plus, get an Extended Double Diamond Warranty.

    You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

    Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

    * Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

    What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.