These are new old stock but obviously obsolete however read on, all is not lost...
Maxon Australia
MaxCard mobile modem
Model: MM-5100XA
Designed to operate on the 800Mhz band, EV-DO
These are offered to those who might have a use for these overseas in particular or for experimentation but they are absolutely useless for use with the original carrier Telstra on a CDMA network because their CDMA systems were shut down years ago.
HOWEVER, if you have a look at this Wiki link there does still seem to be some compatible systems around the globe so perhaps these can be put to use somewhere other than Australia
https://en.wikipedia.org/wiki/List_of_CDMA2000_networks
The other drawback is the interface, these are PCMCIA slot modems - now long since replaced by USB.
Comes with the original box
User guide (very detailed)
Installation CD-ROM (useable up to Windows XP)
No Mac software