Mini-PCI Modem card

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Mini-PCI Modem card

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


  • Chipset: Ambit (formerly Lucent Microelectronics) Softmodem
  • PCI ID: 11c1:0449

IBM Part numbers

IBM FRU PN: 08K3251, 08K3252, 08K3338, 08K3383, 08K3429, 08K4852, 08K4853, 08K4855, 91P7659
IBM FRU PN (390X): 10L1296
IBM FRU PN (570/E): 08K3412

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

  • Mini PCI modem card (Ambit)
  • Mini PCI modem card (IBM CR)
  • Mini PCI modem card (M2) (IBM)
  • modem card Ambit
  • Mini PCI modem

Linux driver

The Linux driver from SmartLink may work.
Latest version of this driver is 2.9.10 and supports both the 2.4 and 2.6 kernels.

Otherwise try using the slightly dated ltmodem driver for Linux.
The latest version of this driver is 8.31a and supports the 2.4 kernels. has prepared a version of the driver for 2.6 kernels.

Lastly, IBM supplies an outdated version (5.95) of the ltmodem driver, with only kernel 2.2 support here.

The Fax is supported by hylafax only, as mgetty-fax requires a class 2 modem, which this one isn't.

ThinkPads this card may be found in