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

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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 adapter should be automatically supported in recent distributions with the ath5k driver. However this driver might be unstable unless you have at least kernel 2.6.29.

Alternatively the Madwifi driver works with this adapter.

ThinkPads this card may be found in

Related Links