IBM 11a/b/g Wireless LAN Mini PCI Adapter II

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IBM 11a/b/g Wireless LAN Mini PCI Adapter II

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


  • Chipset: Atheros AR5004X
  • Radio Chip: Atheros AR5112
  • MAC Processor: Atheros AR5213
  • IEEE Standards: 802.11a, 802.11b, 802.11g
  • PCI ID: 168c:1014

Mini-PCI WiFi Adapter

IBM Partnumbers

Ambit parts
IBM Option PN (WW): 73P4301
IBM Option PN (Philippines, Singapore, Indonesia, Taiwan, China): 73P4302
IBM Option PN (Japan): 73P4303
IBM FRU PN (WW): 93P4262
IBM FRU PN (Philippines, Singapore, Indonesia, Taiwan, China): 93P4264
IBM FRU PN (Japan): 93P4266

Bartlett parts
IBM FRU PN (US): 27K9944
IBM FRU PN (EU): 27K9946
IBM FRU PN (Japan): 27K9948
IBM FRU PN (Taiwan): 27K9999

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

  • 802.11a/b/g Ambit wireless Card
  • 802.11a/b/g Bartlett Wireless Card
  • ThinkPad 11a/b/g Mini PCI Adapter II

Additional features

The chipset itself supports Atheros eXtended Range (XR) technology, and Atheros Super A/G (Turbo) modes, but this functionality may be disabled.

Windows WiFi driver

A universal driver can be used. This can be downloaded at the following link: Ensure an installation diskette is saved first and then proceed to update the driver of the mini pci card through the device manager.

Linux WiFi driver

This is an Atheros chip and works with the Madwifi driver "out of the box". This card will be also detected by open-source ath-driver, but as of now (end of January '06), it doesn't support actual wireless operations.

Make sure that your kernel supports "CONFIG_SECURITY_CAPABILITIES", or you might get some message from the Atheros hal that it does not support all features.

ThinkPads this card may be found in

Related Links