Multi-Multi-Tech MultiModem ZPX Plug-in card Fax / modem review: Multi-Multi-Tech MultiModem ZPX Plug-in card Fax / modem

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CNET Editors' Rating

2.5 stars OK
Review Date:
Updated on:

The Good Nice collection of software, ample telephony features.

The Bad Big price, bad performance.

The Bottom Line With a needlessly high price, skip the ZPX unless future V.90 enhancements bring up its performance.

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At $150, the Multi-Tech MultiModemZPX is costly for an internal. While it offers some additional features over its external counterpart, performance is sadly lacking. With good clean lines, the MultiModem managed an acceptable 42.6 kbps for V.90 calls. But when challenged with noise and distortion, it fell apart. Even with some relatively benign impairments, the modem couldn't stay above 35 kbps. At $150, the Multi-Tech MultiModemZPX is costly for an internal. While it offers some additional features over its external counterpart, performance is sadly lacking. With good clean lines, the MultiModem managed an acceptable 42.6 kbps for V.90 calls. But when challenged with noise and distortion, it fell apart. Even with some relatively benign impairments, the modem couldn't stay above 35 kbps.

As the only product in our roundup to use Lucent Technologies' chipset, we were hoping for better from the MultiModemZPX. But despite the fact that V.90 is a standard protocol, there is still some variation in how it gets implemented, and performance can fluctuate, depending upon the type of central site equipment used in making the connection. Thus, the Multi-Tech may perform better with Livingston units than it did with CNET Labs' test equipment.

Analog V.34 connections told an entirely different story. Here, the ZPX behaved admirably by delivering 30.6 kbps over good line conditions while remaining relatively untroubled by bad ones. With compression enabled, the MultiModem transferred text-based files at a speedy 93 kbps.

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Where to Buy See All

Multi-Multi-Tech MultiModem ZPX Plug-in card Fax / modem

Part Number: MT5634ZPX
MSRP: $119.00 Low Price: $80.21 See all prices

Quick Specifications See All

  • Max Transfer Rate 56 Kbps
  • Package Type retail
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