One really good feature is the possibility to chain two of these and get 16 I/O, shown to the computer as one device. Note that this works perfectly well with OS X, but on Windows, XP is the last version supported. NO 64-bit Vista / 7 / 8.
- Connect the two devices with the Mac-lead (haven’t tried the 422 COM ports)
- Plug it in the USB-port
- Turn both devices on
- Turn Mac on
- Go to software update and look for updates
- Install the Unitor Family Driver 2.5 update
- Restart computer