Keyspan
Keyspan USB Serial Adapter
FreeUSB driver
Windows
Keyspan USB adapters
FreeFor all models of their usb serial adapters.
Mac
Keyspan USB Twin Serial Adapter
FreeDriver for the USB twin serial adapter.
Mac
Keyspan Digital Media Remote
Trial versionDigital Media Remote software
WindowsKeyspan SX Serial Card Updater
FreeUpdate your Keyspan SX Serial Card.
MacKeyspan USB PDA Adapter
Trial versionUSB PDA Adapter Software
Windows