Most likely on the disk. Else go to Alpha's site and download the drivers. I have an Alpha (one of 3 ways to connect) and it works fine. The driver is not in an exe file but most likely in a folder on the disk for Mac. Look up the hardware on Alpha site to make sure there is a driver for the Mac for it. Else you can buy one from Amazon for less then 50 bucks that will work on the Mac. The real issue is the hardware is RealTek and you might want to look for the drivers there. RealTek isn't really Mac friendly and that is the same chipset in the WaveRV antenna too.

Good Luck,
Glad your still sailing

Go Slow
Sail Far
Stay Long