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Item#: N82E16833156140

TRENDnet TEW-421PC 802.11g Wireless PC Card

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  • Wi-Fi Compliant with IEEE 802.11g and IEEE 802.11b Standards
  • Uses 2.4 GHz Frequency Band, which Complies with Worldwide Requirements
  • Supports Ad-Hoc (Peer-to-Peer) Mode or Infrastructure (AP-Client)

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

This TrendNet wireless PC Card gives you the speed of Wireless G, and the reliability of PCMCIA connectivity! Whether you're looking to upgrade the wireless speed on your notebook or replace a broken internal card, this adaptor offers ultimate simplicity and fast performance you can count on.

This card offers indoor range of up to100 meters, and helps keep your private data safe from snooping with support for WEP, WPA/WPA2, and –PSK encryption. With Ad Hoc and Infrastructure modes, the card connects to your Peer-to-Peer or AP-Client network with equal ease. The TrendNet wireless PC card offers all the speed and features of an internal wireless card, without the expense!

  • newegg IEEE 802.11b/g Compliant Compliant with the IEEE 802.11b/g protocol, the TRENDnet TEW-421PC smoothly integrates into virtually any existing wireless network with up to 54Mbps data transfer speed.
  • newegg Robust Security The TRENDnet TEW-421PC supports 64/128-bit WEP, WPA/WPA2 and WPA-PSK/WPA2-PSK encryption for highly secured data transfers on your wireless network.
  • newegg ExpressCard Interface The TRENDnet TEW-421PC works with any Windows 98SE/2000/XP/Vista notebook via the high-speed and energy-efficient ExpressCard interface.

Learn more about the TRENDnet TEW-421PC




802.11g PCMCIA Wireless Adapter
Max Data Rates
32bit CardBus Type II
64/128-bit WEP, WPA
Frequency Band
2.4 to 2.497 GHz (Industrial Scientific Medical Band)
1~11 channels (FCC),
1~13 channels (ETSI),
1~14 channels (MKK-Japan),
10~13 channels (France), 3~9 channels (Israel)
Transmitted Power
2dBi Integrated Microstrip Dual Diversity Antenna
0ºC to 40ºC
10-95%, Non-Condensing


Uses 2.4 GHz frequency band (DSSS), which complies with worldwide requirements
Supports IEEE 802.11g or 802.11b (11Mbps) wireless devices
Dynamic data rate shift at 54, 48, 36, 24, 18, 12, 9 and 6Mbps for 802.11g
Dynamic data rate shift at 11, 5.5, 2 and 1Mbps for 802.11b
Supports Ad-Hoc (peer-to-peer) mode and Infrastructure mode (Access Point)
Compatible with Windows 98(SE)/ME/2000/XP SP1 or SP2 (with latest utility/driver)
Supports 64/128/256-bit Wired Equivalent Privacy (WEP) and Passphrase (with latest utility/driver)
Supports Wi-Fi Protected Access Feature (WPA-PSK) (with latest utility/driver)
Low interference and High susceptibility guarantee reliable performance
2dBi antenna with Integrated Microstrip Dual Diversity Antenna
Distance Coverage 35~100 meters indoor, 100~300 meters outdoor (depends on the environment)
Simple User Setup & Diagnostics Utilities

Dimensions & Weight

4.65" x 2.1" x 0.2"
1.27 oz


Package Contents
Quick Installation Guide
Resource Disk
Warranty, Returns, And Additional Information
  • Return Policies
    • Return for refund within: 45 days
    • Return for replacement within: 1 year
  • This item is covered by's 45/1 Return Policy.
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