This download contains the installer software for the Keyspan USB Twin Serial Adapter.Requirements:Mac OS 8 -...
Best Drivers for Keyspan
Mac OS X driver for the Keyspan family of USB serial adapters.What is new in this release:Updated firmware for USA-19HS and UPR-112G (serial port). Recommended for all USA-19HS and UPR-112G users that use their adapter(s) on Mac and Windows...