got this one for 5 bucks + shipping.

the case was really beaten but I already did put the internals into one of my 520 cases that looks much better...

The 540c came with 20MB RAM and the PCMCIA module...

The 350MB HDD in there is secured by an app called FileGuard - it wants a password to let me access the HD. anyone has an idea on how to get around this? disabling extensions or mounting the drive on another mac doesnt do the job... the drive mounts and there is only one file on there that says, the HD is protected :/

did put in one of my 520s HDs that already has an OS setup on it.

all in all a nice conquest for only 5 bucks