IBM High Rate Wireless LAN Mini-PCI Adapter III

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This is a WiFi Adapter that is installed in a Mini-PCI slot.


  • Chipset: Harris Semiconductor Prism 2.5
  • IEEE Standards: 802.11b
  • PCI ID: ??

Mini-PCI WiFi Adapter

IBM Partnumbers

IBM FRU PN: 91P7261, 26P8421

Also known (in IBM literature) as....

  • 802.11b Actiontec Wireless Card
  • 802.11b Actiontec Wireless Card (Braxton)

Linux driver

This adapter works with the 'orinoco_pci' driver as part of any recent 2.4 or 2.6 kernel.
In addition the 'hostap' driver can also be used.

Windows Driver

IBM's latest driver is unstable. For example, No response after suspend. If you have this problem, Get this.

ThinkPads this card may be found in

Latest Firmware

We find newest firmware from internet, It has WPA Support, and some minor update. If you interest, show this.

External links