Used- Apple USB Modem / Mfr. No.: 603-8242
Modems to transmit digital data over voice circuits became obsolete as higher speed Internet connectivity over digital phone and cable TV lines became the standard.
As of September 2009 it is no longer available in the US Apple Store, but it still works (at least for fax) as of Mac OS X version 10.6.2. No officially supported 64-bit driver exists, and as Mac OS X Lion operates by default in 64-bit mode, the USB modem will not function in Lion without workarounds.