Due to an ebay shipping mistake I've got a Cisco router expansion module to get rid of. I don't know much about it but would be willing to trade it for some Mac items. Ebay values seem to be $100-$150. New in the box with manuals and ethernet cable.
Description: 1-port T1/Fractional T1 DSU/CU
Product #: WIC-1DSU-T1=
Manuals say for Cisco 1600, 2600, and 3600 series routers.