Planet ISDN

Planet ISDN was a brand of Integrated Services Digital Networking (ISDN) peripherals marketed by / for early Macintosh computers.

History
/ first released a Planet ISDN NuBus card for the Macintosh II series at a list price of $2.995 in the early 1990s. These were superseded by a version for GeoPort in 1996. A USB version was released in 1999 and supported a bit rate of up to 128 kbps.