Downloading Keyspan USB 4-Port Serial Adapter 1.4 for Mac from our website was free.
From the developer:
Keyspan USB 4-Port Serial Adapter contains version 1.1 of the Keyspan USB 4-Port Serial Adapter installer.
You may want to check out more software for Mac, such as IOGEAR Bluetooth Serial Adapter Configuration Tool, QuickTerm or TCP2Serial, which might be similar to Keyspan USB 4-Port Serial Adapter.
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