IBM 11b/g Wireless LAN Mini PCI Adapter

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


  • Chipset: Atheros AR5004G
  • Radio chip: Atheros AR2112
  • MAC Processor: Atheros AR5213
  • IEEE Standards: 802.11b, 802.11g
  • PCI ID: 168c:0013

Mini-PCI WiFi Adapter

IBM Partnumbers

IBM FRU PN (WW): 91P7418, 93P3477
IBM FRU PN (USA, Canada, Taiwan): 91P7416, 93P3475

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

  • 802.11b/g Ambit wireless card
  • 802.11 b/g Clymer Wireless Card
  • ThinkPad 11b/g Wi-Fi wireless

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.

Madwifi driver works fine on R51e, but the antenna seems to stay switched off after suspend to disk and cannnot be activated without a reboot. Somewhat annoying, shutting down the device before suspend to disk does not solve the problem.

ThinkPads this card may be found in

ThinkPads this card may also work with

  • T30 (2366-86G - works)
  • R40 (2681-GCJ - works with 1.27 BIOS)
  • R32 (2658-CJ2 - works with 2.16 BIOS)
  • T41 (2373 - works with 3.23 BIOS / 3.04 EC)